Light fixture deterioration status assessment system

Abstract

This system provides a light equipment deterioration status determination system that can accurately determine the deterioration status of LED aircraft obstruction lights. [Solution] The system comprises a determination element acquisition device 2 attached to each individual LED aircraft obstruction light 4, and a deterioration status determination device 3 that determines the deterioration status of the LED aircraft obstruction light 4 based on the measurement data acquired from the determination element acquisition device 2. The determination element acquisition device 2 has at least an outside temperature measuring means 6 that measures the outside temperature near the LED aircraft obstruction light 4, and the deterioration status determination device 3 measures the cumulative value (ΣK) of the outside temperature near the LED aircraft obstruction light 4 after it has been installed. n ) The cumulative value of the ambient temperature near the LED aircraft obstruction light 4 when the light intensity (L0) of the same model and type of LED aircraft obstruction light 4 reaches 70% of the initial light intensity (L0) of the same model and type of LED aircraft obstruction light 4 (ΣK 0.7L0 This is a lamp deterioration status determination system 1 that has a control unit 14 that outputs an alarm signal when it reaches a certain level.

Description

Technical Field

[0001] The present invention relates to a luminaire deterioration status determination system for determining the deterioration status of an LED aviation obstruction light, which is a luminaire.

Background Art

[0002] Conventionally, for the purpose of ensuring the safety during flight of aircraft and the like, for example, in the case of high structures such as towers on the ground, the installation of aviation obstruction lights is obligatory. Conventionally, when the extinguishing of an aviation obstruction light was visually confirmed, replacement work was carried out as promptly as possible. However, in this case, since it is inevitable that there will be a period during which the aviation obstruction light is not lit, there was a concern that the safety during flight of aircraft and the like could not be sufficiently ensured. In view of such circumstances, the applicant of the present application has filed an application as disclosed in Patent Document 1 in the past.

[0003] Patent Document 1 discloses an invention related to a machine learning device and a failure determination device for determining the presence or absence of a failure of an aviation obstruction light, named "Machine Learning Device and Failure Determination Device". The machine learning device disclosed in Patent Document 1 is a machine learning device that constructs a learning model for determining the failure of an aviation obstruction light, and includes an input data acquisition means for acquiring a photo of the aviation obstruction light taken as input data, a label acquisition means for acquiring, as a label, a determination result of the failure state of the aviation obstruction light that is the subject in the photo, and a learning model construction means for constructing a learning model for determining the failure state of the aviation obstruction light in a new photo including the aviation obstruction light as the subject by performing supervised learning with the pair of the input data and the label as the training data.

Prior Art Documents

Patent Documents

[0004] [[ID=?]] [[ID=?]]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the invention disclosed in Patent Document 1, when constructing a learning model, for the photos used as its input data (teacher data), it is necessary for the operator who installs the aviation obstruction lights to individually determine the failure state (correct label) of the aviation obstruction lights that are the subject. In addition, aviation obstruction lights include those based on different light emission principles such as at least halogen lamps, xenon lamps, and LEDs. Collecting data on the determination results of the presence or absence of failures of aviation obstruction lights under various conditions for each of them requires a great deal of effort and labor.

[0006] In recent years, LED-type aviation obstruction lights have become the mainstream due to their long lifespan. In particular, in the case of LED-type aviation obstruction lights, there is a problem that it is difficult to accurately determine the presence or absence of a failure state only from a photo because they may not completely turn off even in a failure state and may not experience a significant decrease in luminous intensity.

[0007] The present invention has been made in view of such conventional circumstances, and its object is to provide a luminaire deterioration status determination system that can determine the deterioration status of an LED aviation obstruction light, which is a luminaire, by a simple method while maintaining sufficient determination accuracy.

Means for Solving the Problems

[0008] The first invention for solving the above problems is a lamp deterioration status determination system, which is a system for determining the deterioration status of LED aircraft obstruction lights, which are lamps installed on structures constructed on the ground, and comprises: a determination element acquisition device installed in conjunction with each LED aircraft obstruction light; and a deterioration status determination device that determines the deterioration status of the LED aircraft obstruction light based on measurement data acquired from the determination element acquisition device, wherein the determination element acquisition device is installed near each LED aircraft obstruction light and has a temperature measuring means for measuring the ambient temperature near the LED aircraft obstruction light, and the deterioration status determination device comprises: a storage unit that stores first determination criterion data which serves as a standard when determining the deterioration status of the LED aircraft obstruction light and ambient temperature data acquired from the temperature measuring means; and a control unit that determines the deterioration status of the monitored LED aircraft obstruction light based on the first determination criterion data and ambient temperature data stored in the storage unit and outputs an alarm signal when necessary, wherein the first determination criterion data is the luminous intensity (L) of the monitored LED aircraft obstruction light when it is lit. t ) is the cumulative value (ΣK) of the ambient temperature near the LED aircraft obstruction light when the initial luminous intensity (L0) immediately after installation reaches 70% of the said LED aircraft obstruction light. 0.7L0 The control unit calculates the cumulative value (ΣK) of the ambient temperature near the LED aircraft obstruction light after its installation. n ) but, ΣK 0.7L0 ≦ΣK n The system is characterized by outputting an alarm signal at the first determination point.

[0009] In the first invention with the above configuration, the light-emitting element constituting the light source of the LED aircraft obstruction light, which is the object of monitoring, deteriorates when exposed to heat. In other words, problems occur such as a decrease in the luminous flux density emitted from the light-emitting elements, or a decrease in luminous intensity as many light-emitting elements gradually fail to light up. Therefore, in the first invention, as the first criterion data for determining the deterioration status of the LED aircraft obstruction light, the cumulative value (ΣK) of the ambient temperature near the LED aircraft obstruction light at the time when another LED aircraft obstruction light of the same model and type number reaches 70% of its initial luminous intensity (L0) immediately after installation is used. 0.7L0) By using this, it is possible to indirectly and quantitatively determine the deterioration status of the LED aviation obstruction light to be monitored due to heat (outside air temperature).

[0010] The second invention is the above-mentioned first invention, wherein the temperature measurement means measures the outside air temperature at a predetermined time between 11:30 and 15:30 once a day.

[0011] In the second invention with the above configuration, by specifying the measurement timing and frequency of the outside air temperature by the temperature measurement means, it is possible to reduce the amount of measurement data handled by the control unit while sufficiently maintaining the determination accuracy of the deterioration status of the LED aviation obstruction light. Thereby, the facilities (such as a memory device) for configuring the system of the second invention can be simplified.

[0012] [[ID=A3]] The third invention is the above-mentioned first or second invention, wherein the determination element acquisition facility is provided near each LED aviation obstruction light to be monitored, and includes a photometric measurement means for measuring the luminous intensity (L t ) when the LED aviation obstruction light is lit. The storage unit stores 0.7L0 based on the initial luminous intensity (L0) measured by the photometric measurement means immediately after the installation of the LED aviation obstruction light to be monitored as the second determination reference data. The control unit outputs an alarm signal at the earlier of the second determination time point when L t ) ≦ 0.7L0 or the previous first determination time point. t

[0013] In the third invention with the above configuration, by using two pieces of data, the first determination reference data and the second determination reference data, to determine the deterioration status of the LED aviation obstruction light to be monitored, the deterioration status of the LED aviation obstruction light can be determined more accurately. <A5>

[0014] The fourth invention is the above-mentioned first or second invention, wherein the determination element acquisition facility is connected to the wiring that supplies power to each LED aviation obstruction light to be monitored, and measures the current value (A tThe unit includes a current measuring means for measuring the luminous intensity (L) of the LED aircraft obstruction light when it is lit, and the memory unit stores the luminous intensity (L) of the LED aircraft obstruction light when it is lit. t ) The current value (A) at the point when the initial luminous intensity (L0) of the LED aircraft obstruction light reaches 70% immediately after installation. 0.7L0 The control unit stores the current value (A) as the third criterion data, and the control unit stores the current value (A) t ) but, A t ≤A 0.7L0 The system is characterized by outputting an alarm signal at the earlier of the third determination point or the first determination point mentioned above.

[0015] In the fourth invention of the above configuration, by using two sets of criteria data, a first criterion data and a third criterion data, to determine the deterioration status of the LED aircraft obstruction light being monitored, the deterioration status of the LED aircraft obstruction light can be determined more accurately. [Effects of the Invention]

[0016] According to the first invention described above, the deterioration status of individual LED aircraft obstruction lights, or more specifically, the deterioration status caused by the LED aircraft obstruction lights 4 being exposed to heat due to weather conditions outdoors, can be accurately determined. In other words, in the first invention, the deterioration status of an LED aircraft obstruction light is determined based on measurement data obtained from a determination element acquisition device attached to each individual LED aircraft obstruction light, thus reducing the possibility that the obtained determination result is incorrect. In this case, it is possible to prevent situations where LED aircraft obstruction lights are replaced when they are not actually significantly deteriorated and do not need replacing, or where replacement is delayed because signs of deterioration are not detected, even though it is time for replacement. Therefore, according to the first invention, the luminous intensity (L) of the LED aircraft obstruction light to be monitored is t This makes it more reliable to prevent the luminosity from falling below 70% of the initial luminosity (L0). As a result, the safety of aircraft during flight can be improved.

[0017] According to the second invention, the equipment constituting the system can be simplified. In this case, the costs required for the installation and maintenance of the system relating to the second invention can be reduced.

[0018] According to the third or fourth invention, if the light-emitting elements constituting the light source in an individual LED aircraft obstruction light deteriorate due to causes other than exposure to heat (ambient temperature) and fall below 70% of the initial luminous intensity (L0), it is possible to detect situations such as a problem in the power distribution system of the LED aircraft obstruction light. In this case, the luminous intensity (L) of the monitored LED aircraft obstruction light t This makes it more reliable to prevent the lights from being used at a level below 70% of their initial luminosity (L0), thereby further improving the safety of aircraft during flight. [Brief explanation of the drawing]

[0019] [Figure 1] This is a system configuration diagram of the lamp deterioration status determination system according to this embodiment. [Figure 2] This is an illustrative diagram of the equipment for acquiring determination elements for the lamp deterioration status determination system according to this embodiment. [Figure 3] This is a cross-sectional view of the light source of an LED aircraft obstruction light. [Figure 4] This is a side view of an LED aircraft obstruction light. [Figure 5] This is an illustrative diagram of the light source for other LED aircraft warning lights. [Figure 6] This is a perspective view of other LED aircraft obstruction lights. [Figure 7] This graph shows the relationship between the luminous flux density of the light-emitting elements that make up an LED light source and time. [Figure 8] This flowchart shows the procedure for determining the deterioration status of LED aircraft obstruction lights based on the second set of judgment criteria data. [Figure 9] This flowchart shows the procedure for determining the deterioration status of the LED aircraft obstruction light 4 based on the third set of judgment criteria data. [Figure 10] This flowchart shows the procedure for generating the first criterion data based on the second criterion data. [Figure 11] This flowchart shows the procedure for determining the deterioration status of the LED aircraft obstruction light 4 based on the first judgment criterion data. [Modes for carrying out the invention]

[0020] A lamp deterioration status determination system according to an embodiment of the present invention will be described in detail with reference to Figures 1 to 11. Note that the following description of preferred embodiments is essentially illustrative.

[0021] [1; Regarding the basic configuration of the present invention] A typical embodiment of the present invention (hereinafter referred to as "this embodiment") of the lamp deterioration status determination system will be described with reference to Figures 1 and 2. As shown in Figures 1 and 2, the light fixture deterioration status determination system 1 according to this embodiment consists of LED aircraft obstruction lights 4 installed at desired locations on structures such as steel towers 19, which are mainly at a high height above the ground; determination element acquisition equipment 2, which is attached to each LED aircraft obstruction light 4 and acquires measurement data used to determine its deterioration status; and deterioration status determination equipment 3, which determines the deterioration status of the LED aircraft obstruction lights 4 based on the measurement data acquired by the determination element acquisition equipment 2.

[0022] More specifically, the determination element acquisition equipment 2 includes, for example, as shown in Figure 2, a light intensity measuring means 5 for measuring the light intensity of the monitored LED aircraft obstruction light 4 when it is lit, an ambient temperature measuring means 6 for measuring the ambient temperature near the monitored LED aircraft obstruction light 4 at a desired timing, and a current measuring means 7 connected to the wiring that supplies power to the monitored LED aircraft obstruction light 4 and for measuring the current when it is lit. Furthermore, the judgment element acquisition equipment 2 includes a communication unit 8 that transmits the measurement data acquired by the light intensity measurement means 5, the ambient temperature measurement means 6, and the current measurement means 7 to the deterioration status determination equipment 3.

[0023] In Figure 1, an example is shown in which one communication unit 8 is installed on one transmission tower 19, and this communication unit 8 transmits the measurement data acquired by all the light intensity measuring means 5, ambient temperature measuring means 6, and current measuring means 7 installed on that tower to the deterioration status determination equipment 3. However, a communication unit 8 may also be installed for each individual light intensity measuring means 5, ambient temperature measuring means 6, or current measuring means 7.

[0024] Each LED aircraft obstruction light 4 installed on the transmission tower 19 is connected to the light control unit 9, and power is supplied from the power supply 10 to each LED aircraft obstruction light 4 via the light control unit 9. Furthermore, the current measuring means 7 is connected to the wiring that connects the LED aircraft obstruction light 4 and the light control unit 9. Conventional testers and the like can be used as the current measuring means 7 without any problems.

[0025] The light intensity measuring means 5 is installed on the steel material constituting the tower 19, near each individual LED aircraft obstruction light 4, and in a position where the light intensity when the light is emitted can be measured. Furthermore, conventionally known photometers and the like can be used without any problems as the photometric measurement means 5. Similarly, the outside temperature measurement means 6 is installed on the steel material constituting the tower 19 and near each individual LED aircraft obstruction light 4. It is desirable that the outside temperature measurement means 6 be installed in a location where conditions such as sunlight are approximately the same as those of the monitored LED aircraft obstruction lights 4. Furthermore, conventionally known temperature sensors can be used without any problems as the outside temperature measurement means 6.

[0026] The deterioration status determination equipment 3 of the lamp deterioration status determination system 1 according to this embodiment is composed of, for example, a PC or a server device. More specifically, the deterioration status determination equipment 3 comprises at least a communication unit 12 that communicates with the determination element acquisition equipment 2 via a conventionally known communication network such as the Internet 11, a storage unit 13 (memory) that stores the measurement data etc. acquired from the determination element acquisition equipment 2 via the communication unit 12, a control unit 14 that determines the deterioration status of each LED aircraft obstruction light 4 based on the measurement data etc. stored in the storage unit 13 and outputs an alarm signal based on the determination result, and an output display unit 18 that can display the signal output from the control unit 14.

[0027] Furthermore, the control unit 14 of the deterioration status determination equipment 3 includes at least a calculation processing unit 15 that generates judgment criterion data used to determine the deterioration status of each LED aircraft obstruction light 4 by performing calculations on each measurement data acquired by the determination element acquisition equipment 2 based on a pre-set calculation formula, etc., a determination unit 16 that determines the deterioration status of each LED aircraft obstruction light 4 based on the judgment criterion data generated by the calculation processing unit 15 or the judgment criterion data stored in the storage unit 13, and an alarm output unit 17 that outputs an alarm signal as necessary based on the determination result of the determination unit 16.

[0028] The alarm signal output from the alarm output unit 17 of the control unit 14 is displayed on the output display unit 18. This output display unit 18 is, for example, a monitor or display, and if the deterioration status determination equipment 3 is a server device, it is connected to the control unit 14 via the communication unit 12 and a conventionally known communication network such as the Internet 11. Although not specifically shown in the diagram, the deterioration status determination equipment 3 is also equipped with an input setting unit (e.g., a keyboard) for performing setting input operations as needed.

[0029] The deterioration status determination equipment 3 according to this embodiment determines the luminous intensity (L) of the LED aircraft obstruction light 4 at any point in time when it is lit. t ) is calculated by accumulating the ambient temperature (ΣK) near the LED aircraft obstruction light at the point when the luminous intensity (L0) reaches 70% of the initial luminous intensity (L0) of another LED aircraft obstruction light 4 of the same model and type as the said LED aircraft obstruction light 4 immediately after installation. 0.7L0The storage unit 13 stores the first judgment criterion data (ΣK), and the judgment unit 16 of the control unit 14 calculates the cumulative value of the ambient temperature near the LED aircraft obstruction light 4 after it has been installed. n ) is ΣK 0.7L0 ≦ΣK n When it is determined that the condition is met (at the first determination point), the alarm output unit 17 is configured to output an alarm signal to the output display unit 18.

[0030] [2; Regarding LED aircraft obstruction lights] The LED aircraft obstruction light 4 used in the lamp deterioration status determination system 1 according to this embodiment will be described with reference to Figures 3 to 7. Examples of LED aircraft obstruction lights 4 include LED aircraft obstruction lights 4A, which have a light-emitting section 20A inside a substrate 22 equipped with a large number of bullet-shaped LEDs 23, as shown in Figure 3, and LED aircraft obstruction lights 4B, which have a light-emitting section 20B inside a conventionally known Fresnel lens 24 with a light-emitting module 25 placed behind it as the light source. Furthermore, the light-emitting part 20A of the LED aircraft obstruction light 4A is installed on the steel material of the tower 19 via a columnar support part 21. Similarly, the light-emitting part 20B of the LED aircraft obstruction light 4B is also installed on the steel material of the tower 19 via a columnar support part 21.

[0031] Furthermore, the light-emitting elements that constitute the light source in LED aircraft obstruction lights 4 (such as LED aircraft obstruction lights 4A and LED aircraft obstruction lights 4B) generally have the property of being sensitive to heat, and this heat is the main cause of deterioration of the light-emitting elements over time. Therefore, as shown in the graph in Figure 7, the light sources constituting the light-emitting sections 20A and 20B of the LED aircraft obstruction light 4 have the highest luminous flux density at the start of illumination (initial illumination), and thereafter the luminous flux density gradually decreases over time. This means that the luminous intensity of the LED aircraft obstruction light 4 gradually decreases over time.

[0032] Furthermore, the light source of the LED aircraft obstruction light 4 described above is composed of numerous light-emitting elements. Therefore, unless there is a problem with the power distribution system, any malfunction will manifest as a decrease in the luminous intensity of individual tiny light-emitting elements or damage to individual light-emitting elements causing them to fail to light up. Consequently, it is extremely rare for the luminous intensity of the LED aircraft obstruction light 4 to suddenly decrease or become zero. Therefore, in the lamp deterioration status determination system 1 according to this embodiment, the luminous intensity (L) of each LED aircraft obstruction light 4 is determined. t The LED aircraft obstruction light 4 is considered to have malfunctioned when its luminous intensity falls to 70% of the initial luminous intensity (L0) when a new LED aircraft obstruction light 4 is installed (at the second judgment point). Furthermore, the luminous intensity (0.7L0), which is the criterion for that judgment, is the second criterion data.

[0033] Furthermore, in this embodiment, we take into account that the light-emitting elements constituting the light source of the LED aircraft obstruction light 4 are sensitive to heat, and we consider the ambient temperature (K) near each individual LED aircraft obstruction light 4. n The ambient temperature is measured by the ambient temperature measuring means 6 and the measured value is stored in the storage unit 13 as ambient temperature data, and the cumulative value of the ambient temperature (ΣK) from the start of use (initial) of the LED aircraft obstruction light 4 is also calculated. n ) The cumulative value (ΣK) of the ambient temperature near this LED aircraft obstruction light 4 when its luminous intensity (L0) reaches 70% of the initial luminous intensity (L0) of another LED aircraft obstruction light 4 of the same model and type as this LED aircraft obstruction light 4. 0.7L0 When the condition reaches (the first determination point), the LED aircraft obstruction light 4 is considered to have malfunctioned. Furthermore, the cumulative value (ΣK) which is the criterion for that determination. 0.7L0 This is the first criterion data.

[0034] In addition, if any of the numerous light-emitting elements that make up the light source of the LED aircraft obstruction light 4 deteriorate and fail to light up, the current value (A) flowing through that LED aircraft obstruction light 4 will decrease. t ) decreases. Therefore, the current value (A) at any point in time after the installation of the LED aircraft obstruction light 4 (provided that the LED aircraft obstruction light 4 is lit) tThe deterioration status (failure state) of the LED aircraft obstruction light 4 can also be indirectly determined by monitoring the following. Therefore, in this embodiment, the current value (A) when each LED aircraft obstruction light 4 is lit is set to the appropriate value. t ) Measure this current value (A t ) The current value (A) at the point when the luminous intensity (L0) of another LED aircraft obstruction light 4 of the same model and type as the said LED aircraft obstruction light 4 reaches 70% of the initial luminous intensity (L0) of another LED aircraft obstruction light 4 of the same model and type as the said LED aircraft obstruction light 4. 0.7L0 When the condition reaches (the third determination point), the LED aircraft obstruction light 4 is considered to have malfunctioned. Furthermore, the current value (A) is the criterion for that determination. 0.7L0 ) is the data for the third criterion.

[0035] [3; Procedure for determining the deterioration status of LED aircraft obstruction lights] Referring to Figures 8 to 11, the specific procedure for determining the deterioration status (failure state) of individual LED aircraft obstruction lights 4 in the light deterioration status determination system 1 according to this embodiment will be described. Referring to Figure 8, the procedure for determining the deterioration status of the LED aircraft obstruction light 4 based on the second judgment criterion data (0.7L0) will be explained. When a new LED aircraft obstruction light 4 is installed and illuminated at a desired location on the transmission tower 19, in step S11, the initial luminous intensity (L0) is measured by a luminous intensity measuring means 5 provided in conjunction with the LED aircraft obstruction light 4. The process then proceeds to step S12, where the luminous intensity (0.7L0) based on the initial luminous intensity L0 is stored in the storage unit 13 as the second criterion data.

[0036] Next, the process proceeds to step S13, and after the desired time has elapsed, the process proceeds to step S14 to determine whether or not the LED aircraft obstruction light 4 is still lit. If the result of step S14 is YES, the process proceeds to step S15, where the luminous intensity measuring means 5 measures the luminous intensity (L) of the LED aircraft obstruction light 4. t ) Measure. Next, proceed to step S16, and the above luminous intensity (L t Determine whether the luminosity (0.7L0) has fallen below (0.7L0).

[0037] If the result of the determination in step S16 is YES, the process proceeds to step S17, where the LED aircraft obstruction light 4 is deemed to be malfunctioning (second determination point), and the determination unit 16 of the control unit 14 outputs an alarm signal, which is displayed on the output display unit 18. If the result of the judgment in step S17 is NO, the LED aircraft obstruction light 4 is considered normal, and the process returns to step S13, and the subsequent steps are repeated.

[0038] After step S17, the process proceeds to step S18, in which the current measurement means 7 attached to the LED aircraft obstruction light 4 is used to measure the current value (A 0.7L0 After measuring this current value (A 0.7L0 This is stored in the storage unit 13 as the third judgment criterion data.

[0039] Referring to Figure 9, the third judgment criterion data (A 0.7L0 The procedure for determining the deterioration status of the LED aircraft obstruction light 4 based on the above will be described. When a new LED aircraft obstruction light 4 is installed and illuminated at a desired location on the transmission tower 19, first in step S21, the current value (A) measured by the current measuring means 7 attached to the LED aircraft obstruction light 4 is measured. t The first measurement of the current value (A) or the previous current value (A) t The system determines whether the desired time has elapsed since the measurement of ). If the result of step S21 is YES, the process proceeds to step S22 to determine whether the LED aircraft obstruction light 4 is lit or not. If the result of step S21 is NO, proceed to step S26, wait for the desired time, and then repeat the process from step S21 onward.

[0040] If the result of step S22 is YES, the process proceeds to step S23, and the current measurement means 7 measures the current value (A t ) Measure. If the result of step S22 is NO, proceed to step S26, wait for the desired time, and then repeat the process from step S21 onwards.

[0041] After step S23, proceed to step S24 and obtain the current value (A t ) is the current value (A 0.7L0 Determine whether the result is less than or equal to the following. If the result of the determination in step S24 is YES, the process proceeds to step S25, where the LED aircraft obstruction light 4 is deemed to be malfunctioning (at the third determination point), and a warning signal is output from the determination unit 16 and displayed on the output display unit 18. If the result of step S24 is NO, proceed to step S26, wait for the desired time, and then repeat the process from step S21 onwards.

[0042] Referring to Figure 10, the procedure for generating the first criterion data based on the second criterion data (0.7L0) will be explained. In this embodiment, the time for measuring the outside temperature is set to a time of day when the outside temperature is particularly high (for example, between 11:30 and 15:30), and the outside temperature (K) is measured once a day at that time. n ) is measured, and the measured value (K n The following will be used as the outside temperature data. To create the first criterion data based on the second criterion data, first, in step S31, the date and time are checked, and then the process proceeds to step S32 to determine whether or not it is the time (n) for measuring the outside temperature.

[0043] If the result of step 32 is YES, the process proceeds to step S33, where the outside temperature measurement means 6 measures the outside temperature (K) near the monitored LED aircraft obstruction light 4. n The measurement is taken and stored in the storage unit 13 along with the measurement date and time data. If the result of step 32 is NO, return to step 31 and repeat the subsequent steps.

[0044] After step S33, the process proceeds to step S34, where the latest outside temperature (K) is retrieved from the memory unit 13. n ) and the cumulative value of the outside temperature one day prior (ΣK n-1 The calculation processing unit 15 reads the value of the ambient temperature (ΣK) and calculates the integrated value of the ambient temperature. n The calculation is performed and the result is stored in the storage unit 13. After step S34, proceed to step S35, and the luminous intensity (L) of the monitored LED aircraft obstruction light 4 is measured. t Determine whether the luminosity (0.7L0) has reached this level.

[0045] If the result of step S35 is YES, proceed to step S36 and calculate the cumulative value of the outside temperature (ΣK) obtained in the previous step S24. n ) is the first criterion data (ΣK 0.7L0 ) is stored in memory unit 13. If the result of the judgment in step S35 is NO, the process returns to step S31 and the subsequent steps are repeated.

[0046] Referring to Figure 11, the first criterion data (ΣK 0.7L0 The procedure for determining the deterioration status of the LED aircraft obstruction light 4 based on the above will be described. When a new LED aircraft obstruction light 4 is installed and illuminated at the desired location on the transmission tower 19, the date and time are first checked in step S41, and then the process proceeds to step S42 to determine whether or not it is the time (n) for measuring the outside temperature.

[0047] If the result of step 42 is YES, the process proceeds to step S43, where the ambient temperature measurement means 6 measures the ambient temperature (K) near the monitored LED aircraft obstruction light 4. n The measurement is taken and stored in the storage unit 13 along with the measurement date and time data. If the result of step 42 is NO, return to step 41 and repeat the subsequent steps.

[0048] After step S43, the process proceeds to step S44, where the latest outside temperature (K) is retrieved from the memory unit 13. n ) and the cumulative value of the outside temperature one day prior (ΣK n-1 The calculation processing unit 15 reads the value of the ambient temperature (ΣK) and calculates the integrated value of the ambient temperature. n The calculation is performed and the result is stored in the storage unit 13. After step S44, proceed to step S45 to calculate the cumulative value (ΣK) of the ambient temperature of the monitored LED aircraft obstruction light 4. n ) is the cumulative value of the outside temperature (ΣK) stored in the memory unit 13. 0.7L0Determine whether the value exceeds ) or not.

[0049] If the result of the determination in step S45 is YES, the LED aircraft obstruction light 4 is considered to be malfunctioning (at the first determination point), and the determination unit 16 outputs an alarm signal which is displayed on the output display unit 18. If the result of the judgment in step S45 is NO, the process returns to step S41 and the subsequent steps are repeated.

[0050] [4; Regarding the effects of this embodiment] According to the lamp deterioration status determination system 1 of this embodiment, the deterioration status of the LED aircraft obstruction light 4 is determined by the second determination criterion data, which is the luminous intensity (0.7L0), or the third determination criterion data, which is the current value (A 0.7L0 ), or the cumulative value (ΣK) which is the first criterion data. 0.7L0 By using this method, it is possible to accurately determine the deterioration status of LED-type aircraft obstruction lights in particular. In this case, it is possible to prevent the illuminance of the LED aircraft obstruction lights 4 installed on structures with high ground clearance, such as the transmission tower 19, from falling below 70% of the initial luminous intensity L0, thereby improving aircraft safety during flight.

[0051] Furthermore, the light deterioration status determination system 1 according to this embodiment requires simple equipment for implementation, and the procedure for determining the deterioration status of the LED aircraft obstruction lights 4 is also extremely simple, thus significantly reducing the costs required for its operation.

[0052] [5; Modifications of this embodiment, etc.] (Regarding the use of multiple criteria data in combination) Figures 8, 9, and 11 illustrate an example where the deterioration status of the LED aircraft obstruction light 4 is determined using one of the first to third judgment criterion data. However, the deterioration status of the LED aircraft obstruction light 4 may also be determined using two of the three judgment criterion data mentioned above. More specifically, when determining the deterioration status of the LED aircraft obstruction light 4 using the first criterion data (see Figure 11), the deterioration status of the LED aircraft obstruction light 4 may also be determined using the second or third criterion data in addition to the first criterion data.

[0053] More specifically, in step S45 of the flow shown in Figure 11, the cumulative value of the ambient temperature (ΣK) of the monitored LED aircraft obstruction light 4 is calculated. n The accumulated value of the outside temperature (ΣK) is stored in the memory unit 13. 0.7L0 It is determined whether or not the luminous intensity (L) of the LED aircraft obstruction light 4 has reached the required level. t The system may also be configured to determine whether the luminous intensity (0.7L0) has reached a certain level. Alternatively, in step S45 of the flow shown in Figure 11, the accumulated value of the ambient temperature (ΣK) of the monitored LED aircraft obstruction light 4 is calculated. n The accumulated value of the outside temperature (ΣK) is stored in the memory unit 13. 0.7L0 It is determined whether or not the current value (A) of the LED aircraft obstruction light 4 has reached the specified value. t ) is the current value (A 0.7L0 The system may also be configured to determine whether or not the condition has been reached.

[0054] In addition to making a judgment based on the first judgment criterion data, by also making a judgment based on the second or third judgment criterion data, it is possible to monitor not only the aging deterioration status of the monitored LED aircraft obstruction light 4, but also whether or not there are any unintended malfunctions in its wiring system. Therefore, the lamp deterioration status determination system according to the above modified example can further improve the accuracy of determining the deterioration status of the LED aircraft obstruction light 4.

[0055] (Regarding the time of measurement of the outside temperature) In this embodiment, the time for measuring the outside temperature by the outside temperature measuring means 6 may be set to, for example, 14:00. In this case, by measuring the outside temperature at a time of day when the temperature is particularly high, the effect of weather-related heat on the light-emitting elements that make up the light source of the LED aircraft obstruction light 4 can be more easily reflected in the first judgment criterion data. In addition, by specifying the frequency of measuring the outside temperature by the outside temperature measurement means 6 to once a day, the amount of data handled by the deterioration status determination equipment 3 of the lamp deterioration status determination system 1 can be reduced.

[0056] Furthermore, in this embodiment, the frequency at which the outside temperature is measured by the outside temperature measuring means 6 may be once a day or more. In this case, the higher the frequency, the more data is handled, making it easier for the influence of the ambient temperature on the light-emitting elements that make up the light source of the LED aircraft obstruction light 4 to be reflected in the first judgment criterion data. As a result, the accuracy of determining the deterioration status of the LED aircraft obstruction light 4 using the first judgment criterion data can be improved. [5; Others] In the lamp deterioration status determination system 1 according to this embodiment, second determination criterion data corresponding to each individual LED aircraft obstruction light 4 can be set. On the other hand, the first and third judgment criterion data are generated based on the monitoring results of the deterioration status of other LED aircraft obstruction lights 4 of the same model and with the same model number, and the number of such data increases as the lamp deterioration status determination system 1 according to this embodiment is operated. Therefore, for the first and third judgment criterion data, it is preferable to use the average values ​​of the data accumulated through the operation of the lamp deterioration status judgment system 1. [Industrial applicability]

[0057] As described above, the present invention is a light equipment deterioration status determination system for determining the deterioration status of LED aircraft obstruction lights, and is applicable in the technical field related to tower-related equipment or equipment related to aircraft operation. [Explanation of Symbols]

[0058] 1…Light fixture deterioration status determination system 2…Determination element acquisition equipment 3…Deterioration status determination equipment 4, 4A, 4B…LED aircraft obstruction light (light fixture) 5…Light intensity measurement means 6…Outside temperature measurement means 7…Current measurement means 8…Communication unit 9…Light fixture control unit 10…Power supply 11…Internet 12…Communication unit 13…Storage unit 14…Control unit 15…Calculation processing unit 16…Determination unit 17…Alarm output unit 18…Output display unit 19…Steel tower 20A, 20B…Light-emitting unit 21A, 21B…Support unit 22…Circuit board 23…Bullet-shaped LED 24…Fresnel lens 25…Light-emitting module

Claims

1. A system for determining the deterioration status of LED aircraft obstruction lights, which are lights installed on structures built on the ground, A determination element acquisition device provided in conjunction with each of the aforementioned LED aircraft obstruction lights, The system includes a deterioration status determination device that determines the deterioration status of the LED aircraft obstruction light based on measurement data obtained from the aforementioned determination element acquisition device, The aforementioned determination element acquisition equipment is installed near each of the LED aircraft obstruction lights and has an ambient temperature measuring means for measuring the ambient temperature near the LED aircraft obstruction lights. The aforementioned deterioration status determination equipment is, A storage unit that stores first judgment criterion data, which serves as a standard for determining the deterioration status of the LED aircraft obstruction light, and outside temperature data obtained from the outside temperature measurement means, The system includes a control unit that determines the deterioration status of the LED aircraft obstruction light based on the first judgment criterion data and the outside temperature data stored in the memory unit, and outputs an alarm signal when necessary, The first judgment criterion data is the luminous intensity (L) of the LED aircraft obstruction light when it is lit. ｔ ) is the initial luminous intensity (L) immediately after installation of the LED aircraft obstruction light. ０ The cumulative value of the ambient temperature near the LED aircraft obstruction light (ΣK) at the point when it reaches 70% of the above value. ０.７Ｌ０ ) and The control unit calculates the cumulative value (ΣK) of the ambient temperature near the LED aircraft obstruction light after its installation. ｎ ) but, ΣK ０.７Ｌ０ ≦ΣK ｎ A lamp deterioration status determination system characterized by outputting the alarm signal at the first determination point.

2. The lamp deterioration status determination system according to claim 1, characterized in that the outside temperature measuring means measures the outside temperature once a day at a predetermined time between 11:30 and 15:

30.

3. The determination element acquisition equipment is installed near each of the LED aircraft obstruction lights, and the luminous intensity (L) of the LED aircraft obstruction light when it is lit is determined. ｔ It is equipped with a photometric measurement means for measuring ) The memory unit stores 0.7L based on the initial light intensity (L) measured by the light intensity measuring means immediately after the installation of the LED aviation obstruction light as the second criterion data, ０ ), ０ and stores it as second criterion data, The control unit controls the luminous intensity (L ｔ ) is L ｔ ≤0.7L ０ The lamp deterioration status determination system according to claim 1 or 2, characterized in that it outputs the alarm signal at the earlier of the second determination time or the first determination time.

4. The determination element acquisition equipment is connected to the wiring that supplies power to each of the LED aircraft obstruction lights and determines the current value (A) when the LED aircraft obstruction light is lit. ｔ It is equipped with a current measuring means for measuring ) The memory unit stores the luminous intensity (L) of the LED aircraft obstruction light when it is lit. ｔ ) is the initial luminous intensity (L) immediately after the installation of the LED aircraft obstruction light. ０ The current value (A) at the point when it reaches 70% of ) ０.７Ｌ０ ) is stored as the third judgment criterion data, The control unit controls the current value (A ｔ ) but A ｔ ≤ A ０.７Ｌ０ The lamp deterioration status determination system according to claim 1 or 2, characterized in that it outputs the alarm signal at the earlier of the third determination time or the first determination time.

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