JP6917836B2 - Lighting inspection method and lighting inspection program - Google Patents

Description

The present invention relates to a method for inspecting a lighting lamp composed of a plurality of LEDs arranged side by side, and an inspection program for a lighting lamp composed of a plurality of LEDs arranged side by side.

Lighting is required to keep the ambient illuminance above the specified value. Therefore, it is necessary to inspect the luminaire and replace the luminaire whose illuminance has deteriorated with a new luminaire. At this time, when the inspector visually inspects the degree of deterioration of the illuminating lamp, the inspector cannot visually inspect the illuminating lamp having a small degree of deterioration and a small decrease in illuminance. Therefore, when the inspector visually inspects the degree of deterioration of the illuminance, the inspector can detect only the illuminance whose illuminance is greatly reduced or the illuminance which cannot be turned on. Therefore, when the inspector visually inspects the degree of deterioration of the illuminant, the illuminance must be replaced after the illuminance around the illuminance is significantly reduced.

For this reason, conventionally, a monitoring device has been proposed in which an illuminance sensor is provided around the illuminance lamp and the deterioration state of the illuminance lamp is monitored based on the detection value of the illuminance sensor (see, for example, Patent Document 1). When the lighting is inspected using such a monitoring device, the control device of the monitoring device constantly monitors the detected value of the illuminance sensor. That is, the control device of the monitoring device constantly monitors the illuminance of the illuminance detected by the illuminance sensor. Then, when the control device of the monitoring device detects that the illuminance of the illuminance has dropped below the threshold value, the maintenance person will replace the illuminance.

Japanese Unexamined Patent Publication No. 2012-104348

An illuminance sensor is required for the inspection method of the lighting lamp using the conventional monitoring device. In addition, the conventional method of inspecting a lighting lamp using a monitoring device also requires a control device that constantly monitors the detected value of the illuminance sensor. Therefore, there is a problem that the inspection method of the lighting lamp using the conventional monitoring device is expensive.

Further, in recent years, LED lighting lamps in which a plurality of LEDs (Light Emitting Diodes) are arranged side by side have begun to be used. When an attempt is made to inspect an LED lighting lamp using a conventional monitoring device, there is a problem that the cost is further increased. Specifically, in the LED lighting, the number of LEDs that cannot be turned on gradually increases, and the illuminance decreases. Therefore, if only one illuminance sensor is arranged around the LED illumination lamp, the detection value of the illuminance sensor will differ depending on the position of the LED that cannot be lit. For example, even if the LED at a position far from the illuminance sensor cannot be lit, if the LED near the illuminance sensor is lit, the illuminance detected by the illuminance sensor will be higher than the actual illuminance of the LED illuminance lamp. .. Therefore, in order to accurately detect the illuminance of the LED lighting, it is necessary to provide a plurality of illuminance sensors. Therefore, if an attempt is made to inspect the LED lighting using a monitoring device, the cost will be further increased.

The present invention has been made to solve the above-mentioned problems, and a first object of the present invention is to provide a lighting inspection method that can be realized at a lower cost than when a conventional monitoring device is used. A second object of the present invention is to provide an inspection program used in such an inexpensive lighting inspection method.

The method for inspecting a lighting lamp according to the present invention is a method for inspecting a lighting lamp configured by arranging a plurality of LEDs, from the first image obtained by imaging the lighting lamp in a lit state and the imaging date of the first image. The LED that is not lit is detected by comparing it with the second image of the lit lamp that is lit at a later date.

Further, the lighting lamp inspection program according to the present invention is a lighting lamp inspection program configured by arranging a plurality of LEDs, and is an imaging of a first image of the lighting lamp in a lit state and an imaging of the first image. A configuration in which the CPU executes a first step of comparing a second image obtained by capturing an image of the lighting lamp that is lit on a day after the day and extracting a difference between the first image and the second image. It has become.

The method for inspecting an illuminating lamp according to the present invention can detect an LED that cannot be turned on by comparing a first image and a second image. Therefore, by using the lighting inspection method according to the present invention, it is possible to determine the replacement time of the lighting based on the number of LEDs that cannot be turned on. Here, the device that is at least required when carrying out the method for inspecting a lighting lamp according to the present invention is an imaging device that images the lighting lamp in a lit state. Therefore, the method for inspecting an illuminating lamp according to the present invention can inspect an illuminating lamp at a lower cost than when a conventional monitoring device is used.

It is a top view which shows an example of a lighting equipment. It is a figure for demonstrating the inspection method of the illuminating lamp which concerns on embodiment of this invention. It is a figure which shows the image of the illuminating lamp used in the inspection method of the illuminating lamp which concerns on embodiment of this invention. It is a flowchart of the inspection method of the lighting lamp which concerns on embodiment of this invention. It is a block diagram which shows an example of the comparison apparatus used in the inspection method of the lighting lamp which concerns on embodiment of this invention.

Embodiment.
FIG. 1 is a plan view showing an example of a lighting device.
The illuminating lamps 11 to 13 of the illuminating device 1 shown in FIG. 1 are an example of illuminating lamps to be inspected by the illuminating lamp inspection method according to the present embodiment. First, the configuration of the lighting device 1 will be described with reference to FIG.

The lighting device 1 includes three lighting lights 11 to 13. The lighting device 1 is, for example, a lighting device attached to the ceiling of an arena or a gymnasium. The lighting device 1 is mounted on the ceiling so that the front side of the paper surface of FIG. 1 faces downward.

The lighting lamps 11 to 13 have the same configuration. Therefore, the configuration of the illuminating lamp 11 will be described on behalf of the illuminating lamps 11 to 13. The illumination lamp 11 is configured by arranging a plurality of LEDs (Light Emitting Diodes) 20 side by side. Specifically, the plurality of LEDs 20 are arranged in five rows in the vertical direction of the paper surface of FIG. Further, the plurality of LEDs 20 are arranged in four rows in the left-right direction of the paper surface of FIG. That is, the illumination lamp 11 includes 20 LEDs 20. By supplying electric power to the illuminating lamp 11, the illuminating lamp 11 is turned on. In other words, by supplying electric power to the 20 LEDs 20, these LEDs 20 are turned on.

Subsequently, the inspection method of the lighting lamps 11 to 13 according to the present embodiment will be described. The inspection method of the lighting lamps 11 to 13 is the same. Therefore, the inspection method of the illuminating lamp 11 will be described below.

FIG. 2 is a diagram for explaining a method of inspecting a lighting lamp according to an embodiment of the present invention. FIG. 3 is a diagram showing an image of a luminaire used in the method for inspecting a luminaire according to an embodiment of the present invention. Further, FIG. 4 is a flowchart of a lighting lamp inspection method according to an embodiment of the present invention. Note that FIG. 3A shows the first image 41, and FIG. 3B shows the second image 42.

In the inspection method of the illumination lamp 11 according to the present embodiment, in step S1, the inspector takes an image of the illumination lamp 11 in the lit state. The image of the illumination lamp 11 at this time is the first image 41 shown in FIG. 3A. The first image 41 is an image of the illuminating lamp 11 in the lit state at a stage where each LED 20 of the illuminating lamp 11 is hardly deteriorated, such as immediately after the illuminating device 1 is installed. Imaging of the illuminating lamp 11 in the lit state is performed as shown in FIG. That is, the image pickup device 30 takes an image of the illuminated illumination lamp 11. The imaging device 30 is not particularly limited. For example, a digital camera may be used as the image pickup device 30. Further, for example, portable devices such as smartphones, tablet personal computers, and mobile phones are also known to be equipped with an imaging device. These imaging devices may be used as the imaging device 30.

As will be described later, the first image 41 is used when detecting the LED 20 that cannot be turned on. Here, if the entire illumination lamp 11 is reflected as one light in the first image 41, each LED 20 constituting the illumination lamp 11 cannot be discriminated. Therefore, by adjusting the aperture function of the image pickup device 30, the image pickup device 30 takes an image of the illuminated illumination lamp 11 so that each LED 20 can be identified in the first image 41. By imaging the illumination lamp 11 in this way, the 20 LEDs 20 are reflected as 20 lights in the first image 41. That is, each of the LEDs 20 is reflected as one light in the first image 41. When the illumination lamp 11 is imaged, the neutral density filter 32 may be attached to the lens 31 of the image pickup apparatus 30. It becomes easy to take an image of the illuminating lamp 11 in the lit state so that each LED 20 can be discriminated.

Step S2 and step S3 are performed when the illumination lamp 11 is inspected after step S1. These steps S2 and S3 are steps performed every time the illumination lamp 11 is inspected. Specifically, in step S2, the inspector takes an image of the lit illumination lamp 11 in the same manner as in step S1. The image of the illumination lamp 11 at this time is the second image 42 shown in FIG. 3 (b). That is, the second image 42 is an image obtained by capturing the illumination lamp 11 in the lit state on a day after the imaging date of the first image 41.

Also in the second image 42, the lit LED 20 is reflected as one light. However, in the second image 42, no light is reflected at the position of the LED 20 that is not lit. In FIG. 3B, the LED 20 that cannot be turned on due to deterioration or the like is shown in black.

In step S3, the inspector compares the first image 41 with the second image 42. When the light is not reflected in the second image 42 in the place where the light is reflected in the first image 41, it can be understood that the LED 20 in the place is not lit when the second image 42 is imaged. That is, when the light is not reflected in the second image 42 in the place where the light is reflected in the first image 41, it can be seen that the LED 20 in the place cannot be turned on due to deterioration or the like. Therefore, the LED 20 that is not lit can be detected.

By performing the above-mentioned steps S2 and S3 for each inspection of the lighting 11, the number of LEDs 20 that cannot be turned on increases. Then, as the number of LEDs 20 that cannot be turned on increases, the illuminance of the illumination lamp 11 also decreases. Therefore, when the number of LEDs 20 that cannot be turned on reaches the specified number, the lighting 11 is replaced with a new lighting. The specified number is appropriately determined based on the illuminance required for the illumination lamp 11.

As described above, the inspection method of the lighting lamp according to the present embodiment is the inspection method of the lighting lamps 11 to 13 configured by arranging a plurality of LEDs 20. Then, in the method of inspecting the illuminating lamp according to the present embodiment, the first image 41 in which the illuminating lamp 11 in the lit state is imaged and the illuminating lamp 11 in the lit state on a day after the imaging date of the first image 41 are displayed. The LED 20 that is not lit is detected by comparing with the captured second image 42. Further, in the method of inspecting the illuminating lamp according to the present embodiment, the first image 41 in which the illuminating lamp 12 in the lit state is imaged and the illuminating lamp 12 in the lit state on a day after the imaging date of the first image 41 are used. The LED 20 that is not lit is detected by comparing with the captured second image 42. Further, in the method of inspecting the illuminating lamp according to the present embodiment, the first image 41 in which the illuminating lamp 13 in the lit state is imaged and the illuminating lamp 13 in the lit state on a day after the imaging date of the first image 41 are used. The LED 20 that is not lit is detected by comparing with the captured second image 42.

Therefore, in the method for inspecting the lighting lamp according to the present embodiment, when the number of the lighting lamps 11 to 13 that cannot be turned on reaches the specified number, the number of the lighting lamps 20 that cannot be turned on reaches the specified number. The luminaire can be replaced with a new luminaire. Therefore, in the method of inspecting the illuminating lamp according to the present embodiment, the illuminating lamps 11 to 13 can be replaced before the illuminance of the illuminating lamps 11 to 13 becomes less than the required illuminance.

Here, the device that is at least required when carrying out the method for inspecting the lighting lamp according to the present embodiment is an imaging device 30 that images the lighting lights 11 to 13 in the lit state. That is, the lighting inspection method according to the present embodiment is different from the lighting inspection method using the conventional monitoring device, and does not require an illuminance sensor and a control device that constantly monitors the detection value of the illuminance sensor. be. Therefore, in the method for inspecting the illuminating lamp according to the present embodiment, the illuminating lamps 11 to 13 can be inspected at a lower cost than when a conventional monitoring device is used.

Further, as described above, the method of inspecting the lighting lamp according to the present embodiment can grasp the number of LEDs 20 that cannot be turned on. Therefore, the maintenance person of the lighting device 1 can order a replacement lighting lamp when the number of the LEDs 20 that cannot be turned on is close to the specified number among the lighting lamps 11 to 13. .. For example, an arbitrary number smaller than the specified number is defined as the second specified number. For example, the maintenance person of the lighting device 1 can order a replacement lighting lamp when there is a lighting lamp in which the number of LEDs 20 that cannot be turned on is the second specified number among the lighting lamps 11 to 13. .. Therefore, by using the lighting inspection method according to the present embodiment, the number of replacement lightings in stock can be reduced, and the storage space for the replacement lightings can also be reduced. Therefore, the cost of maintenance work can be reduced by using the lighting inspection method according to the present embodiment.

The above-mentioned step S3 may be performed by, for example, the following comparison device.

FIG. 5 is a block diagram showing an example of a comparison device used in the method for inspecting a lighting lamp according to an embodiment of the present invention.
The comparison device 50 is composed of dedicated hardware or a CPU (Central Processing Unit) that executes a program stored in a memory. The CPU is also referred to as a central processing unit, a processing unit, an arithmetic unit, a microprocessor, a microcomputer, or a processor.

When the comparison device 50 is dedicated hardware, the comparison device 50 may be, for example, a single circuit, a composite circuit, an ASIC (application specific integrated circuit), an FPGA (field-programmable gate array), or a combination thereof. Applicable. Each of the functional units realized by the comparison device 50 may be realized by individual hardware, or each functional unit may be realized by one hardware.

When the comparison device 50 is a CPU, each function executed by the comparison device 50 is realized by software, firmware, or a combination of software and firmware. Software and firmware are written as programs and stored in memory. The CPU realizes each function of the comparison device 50 by reading and executing the program stored in the memory. Here, the memory is a non-volatile or volatile semiconductor memory such as, for example, RAM, ROM, flash memory, EPROM, or EEPROM.

It should be noted that a part of the functions of the comparison device 50 may be realized by dedicated hardware, and a part may be realized by software or firmware.

The comparison device 50 according to the present embodiment includes a storage unit 51 and a comparison unit 52 as functional units for performing the above-mentioned step S3. The storage unit 51 is a functional unit that stores the first image 41 and the second image 42. The comparison unit 52 is a functional unit that compares the first image 41 and the second image 42 and extracts differences. Specifically, the comparison unit 52 compares the first image 41 and the second image 42, and extracts a portion where the light is reflected in the first image 41 and the light is not reflected in the second image 42. From the extraction result of the comparison unit 52, the inspector can detect the LED 20 that cannot be turned on. The method of extracting the difference between the first image 41 and the second image 42 performed by the comparison unit 52 is not particularly limited. Conventionally, various methods are known as a method of comparing two images and extracting a difference point from both images. The comparison unit 52 may extract the difference between the first image 41 and the second image 42 by using such a conventional method.

That is, when the comparison device 50 is composed of a CPU, the program stored in the CPU is as follows. This program is an inspection program for lighting lamps 11 to 13 configured by arranging a plurality of LEDs 20. Then, this inspection program is a program that causes the CPU to execute the first step of comparing the first image 41 and the second image 42 and extracting the difference between the first image 41 and the second image 42.

For example, portable devices such as tablet personal computers and smartphones include devices having an imaging device as well as a CPU. By storing the above-mentioned inspection program in the CPU of such a device, it is possible to detect the LED 20 that cannot be turned on at the place where the second image 42 is taken, in other words, at the place where the lighting device 1 is installed. can.

When the comparison device 50 is configured by using the above-mentioned inspection program, the comparison device 50 may include a transmission unit 53 as a functional unit. The transmission unit 53 is a functional unit that transmits the extraction result of the first step to the transmission destination. In other words, the above-mentioned inspection program may be a program that causes the CPU to execute the second step of transmitting the extraction result of the first step to the destination. The extraction result of the first step may be transmitted every time the first step is executed, or may be transmitted when the extraction result of the first step satisfies the specified conditions. For example, the transmission unit 53 may transmit the extraction result of the first step when the difference between the first image 41 and the second image 42 becomes the above-mentioned second specified number. For example, by setting the distributors of the lighting lamps 11 to 13 as the transmission destination, the distributor can deliver the replacement lighting lamp to the maintenance person based on the extraction result of the first step transmitted. ..

Further, when the identification information of the illumination lamps 11 to 13 is known, the transmission unit 53 may transmit the identification information of the illumination lamps 11 to 13 to the transmission destination together with the extraction result of the first step in the second step. good. In other words, in the above-mentioned inspection program, in the second step, the identification information of the lighting lamps 11 to 13 may be transmitted to the transmission destination together with the extraction result of the first step. For example, when the seller of the lighting lamps 11 to 13 is the transmission destination, it is possible to prevent the seller from delivering the wrong type of lighting lamp to the maintenance person. The identification information of the illuminating lamps 11 to 13 is, for example, a model number of the illuminating lamps 11 to 13. Further, the identification information of the lighting lamps 11 to 13 is stored in advance in the storage unit 51, for example.

Further, in the second step, the transmission unit 53 may transmit the position information obtained by capturing the second image 42 together with the extraction result of the first step. In other words, in the above-mentioned inspection program, in the second step, the position information obtained by capturing the second image 42 may be transmitted together with the extraction result of the first step. For example, when the distributor of the lighting lamps 11 to 13 is the transmission destination, the seller can deliver the replacement lighting lamp to the place where the lighting equipment 1 is installed. The position information obtained by capturing the second image 42 is, for example, an address or the like stored in advance in the storage unit 51. In addition, some tablet personal computers, smartphones, and the like are equipped with a GPS (Global Positioning System) receiver. In such a case, position information such as latitude and longitude is attached to the image captured by an imaging device such as a tablet personal computer or a smartphone. This location information may be transmitted to the destination.

1 Lighting equipment, 11 lighting lamps, 12 lighting lamps, 13 lighting lamps, 20 LEDs, 30 imaging devices, 31 lenses, 32 neutral density filters, 41 first image, 42 second image, 50 comparison device, 51 storage unit, 52 Comparison unit, 53 transmitter unit.

Claims (6)

It is a method of inspecting a lighting lamp composed of multiple LEDs arranged side by side.
A comparison was made between the first image of the lit lamp in the lit state and the second image of the luminaire in the lit state on a day after the imaging date of the first image.
A method of inspecting an illuminating lamp that detects the LED that is not lit. The method for inspecting an illuminating lamp according to claim 1, wherein an imaging device having a neutral density filter attached to a lens captures the illuminating lamp in a lit state. It is an inspection program for lighting that consists of multiple LEDs arranged side by side.
The first image in which the illuminating lamp in the lit state is imaged is compared with the second image in which the illuminating lamp in the lit state is imaged on a day after the imaging date of the first image, and the first image and the said A lighting inspection program that causes the CPU to perform the first step of extracting differences from the second image. The lighting inspection program according to claim 3, wherein the CPU executes the second step of transmitting the extraction result of the first step to the destination. The lighting inspection program according to claim 4, wherein in the second step, the identification information of the lighting is transmitted together with the extraction result of the first step. The lighting inspection program according to claim 4 or 5, wherein in the second step, the position information obtained by capturing the second image is transmitted together with the extraction result of the first step.

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