JP2022184031A - Information output method and information output system - Google Patents

Abstract

To provide an information output method and an information output system that enable management of states of a plurality of LED light sources.SOLUTION: An information output method includes: acquiring current and voltage supplied for lighting to a plurality of LED light sources, each of which includes a plurality of LED elements; acquiring a temperature of each of the LED light sources; on the basis of a history of the acquired current, voltage, and temperature, calculating a representative value of junction temperatures of the plurality of LED elements included by each of the LED light sources; displaying a plurality of first images corresponding to the plurality of LED light sources; and displaying a second image showing the representative value of junction temperatures at each of the LED light sources in association with each of the first images.SELECTED DRAWING: Figure 1

Description

The present invention relates to an information output method and an information output system for outputting information about the state of an LED light source.

UV (ultraviolet) is used in various industries. For example, techniques using substances that are cured by UV irradiation are used in various industrial processes such as modeling, bonding, coating, painting and printing. For example, some liquid crystal panel manufacturing techniques use UV in processes such as resist peeling and adhesive curing. As a UV light source, an LED light source using an LED (light emitting diode) is sometimes used because of its high efficiency and easy control. The LED light source gradually deteriorates with use, and eventually failures such as non-lighting occur, or the decrease in illuminance may interfere with industrial processes. If a failure occurs, or if the illuminance drops to the point where it interferes with industrial processes, machines such as printers using LED light sources or liquid crystal panel manufacturing equipment cannot be used. Patent Literature 1 discloses a technique for detecting a failure of an LED light source based on current, voltage, and the like.

Japanese Patent No. 5662347

If a failure of the LED light source, or a decrease in illuminance that interferes with the industrial process is detected, the machine, such as a printing press, cannot be used until the LED light source is replaced. Therefore, it is desirable to monitor the state of the LED light source to prevent failure or decrease in illuminance. Machines are typically equipped with multiple LED light sources. In addition, multiple machines may be operating at the same time. Therefore, a technique for managing the states of multiple LED light sources is desired.

An object of the present invention is to provide an information output method and an information output system that enable management of the states of a plurality of LED light sources.

An information output method according to one aspect of the present invention acquires the current and voltage supplied for lighting a plurality of LED light sources each including a plurality of LED elements, acquires the temperature at each LED light source, and acquires based on the history of the current, voltage and temperature, calculate a representative value of the junction temperature of the plurality of LED elements included in each LED light source, and display a plurality of first images corresponding to the plurality of LED light sources; Associated with each first image, a second image is displayed showing a representative value of the junction temperature at each LED light source.

An information output system according to one aspect of the present invention includes a plurality of LED light sources each including a plurality of LED elements, a measurement unit that measures current and voltage supplied to the plurality of LED light sources for lighting, and It comprises a temperature sensor that measures the temperature at the LED light source, an information processing device, and a terminal device that outputs information. The information processing device acquires the current and voltage measured by the measurement unit, acquires the temperature measured by the temperature sensor, and based on the history of the acquired current, voltage and temperature, the A representative value of junction temperatures of a plurality of LED elements is calculated. The terminal device displayed a plurality of first images corresponding to the plurality of LED light sources, and associated with each first image to indicate the representative value of the junction temperature at each LED light source calculated by the information processing device. Display the second image.

With the above configuration, it is possible to manage the states of a plurality of LED light sources. By performing management according to the state of the LED light source, it is possible to prevent the machine using the LED light source from becoming unusable.

1 is a schematic diagram showing a configuration example of an information output system 100 according to Embodiment 1 that outputs information about the state of an LED light source; FIG. 2 is a block diagram showing a functional configuration example of an information processing device and a machine installed at a base according to the first embodiment; FIG. 4 is a conceptual diagram showing an example of contents of light source data; FIG. 3 is a block diagram showing an example of the internal functional configuration of the communication device; FIG. 3 is a block diagram showing an example of the internal functional configuration of the terminal device; FIG. 4 is a flow chart showing the procedure of information acquisition processing executed by the information output system according to the first embodiment. 4 is a graph schematically showing a change in retention rate over time when the junction temperature is constant; 4 is a graph schematically showing temporal changes in the maintenance factor of an actual LED element; FIG. 11 is a schematic diagram showing a display example of a list of a plurality of machines; FIG. 10 is a schematic diagram showing an example of a received image; 4 is a flowchart showing a procedure of processing for outputting information about the state of an LED light source by an information output system; FIG. 4 is a schematic diagram showing an example of a plurality of first images; FIG. FIG. 10 is a schematic diagram showing a first example of a second image; FIG. 10 is a schematic diagram showing a second example of the second image; FIG. 11 is a schematic diagram showing a third example of the second image; FIG. 11 is a schematic diagram showing a fourth example of the second image; FIG. 4 is a schematic diagram showing a first example of the configuration of an information output system according to Embodiment 2; FIG. 9 is a schematic diagram showing a second example of the configuration of the information output system according to Embodiment 2;

In the information output method, the current and voltage supplied for lighting a plurality of LED light sources each including a plurality of LED elements are acquired, the temperature at each LED light source is acquired, and the acquired current, voltage and temperature are obtained. Based on the history, a representative value of junction temperatures of the plurality of LED elements included in each LED light source is calculated, a plurality of first images corresponding to the plurality of LED light sources are displayed, and associated with each first image. , displays a second image showing the representative value of the junction temperature at each LED light source.

In the information output method, currents and voltages supplied to a plurality of LED light sources and temperatures of the LED light sources are obtained, and a representative value of junction temperature is calculated. A plurality of first images corresponding to a plurality of LED light sources are displayed, and a second image showing a representative value of junction temperature at each LED light source is displayed. A user can see the first image and know that information about each LED light source is output. Also, the user can confirm the representative value of the junction temperature by viewing the second image. If the representative value of the junction temperature is too high, the temperature of the LED light source 21 is abnormal. The user can take appropriate measures according to the representative value of the junction temperature, for example, by cooling the LED light source with the abnormal junction temperature. In this way, the user can manage the status of multiple LED light sources.

In the information output method, each first image may simulate the light emitting surface of each LED light source. Since the first image simulates the light emitting surface of the LED light source, the user who visually recognizes the first image can easily recognize that the first image is related to the LED light source.

In the information output method, the color of each first image may be adjusted according to the representative value of the junction temperature in each LED light source. A first image corresponding to an LED light source whose representative value of junction temperature is different from other LED light sources has a different color from the other first images. By checking the color of the first image, the user can recognize the LED light source with the abnormal representative value of the junction temperature. In addition, the user can recognize an LED light source having a different representative junction temperature from the plurality of LED light sources.

In the information output method, the deterioration state of each LED light source is determined based on the relationship between the representative value of the junction temperature of each LED light source and the lighting time of each LED light source, and the second image further includes each LED light source. may indicate the state of deterioration of The longer the lighting time, the more the LED element deteriorates, and the higher the junction temperature, the faster the deterioration progresses. Therefore, the deterioration state of the LED light source is determined based on the representative value of the junction temperature and the lighting time. The user can check the deterioration state of the LED light source by viewing the second image. The user can take measures according to the state of deterioration of the LED light source by, for example, replacing the already deteriorated LED light source.

In the information output method, the color of each first image may be adjusted according to the deterioration state of each LED light source. A first image corresponding to an LED light source whose state of degradation is different from other LED light sources has a different color than the other first images. A user can recognize an LED light source having an abnormal deterioration state by checking the color of the first image. In addition, the user can recognize LED light sources with different deterioration states from the plurality of LED light sources.

The information output system includes a plurality of LED light sources each including a plurality of LED elements, a measurement unit that measures current and voltage supplied to the plurality of LED light sources for lighting, and a temperature measurement at each LED light source. a temperature sensor, an information processing device, and a terminal device that outputs information. The information processing device acquires the current and voltage measured by the measurement unit, acquires the temperature measured by the temperature sensor, and based on the history of the acquired current, voltage and temperature, the A representative value of junction temperatures of a plurality of LED elements is calculated. The terminal device displayed a plurality of first images corresponding to the plurality of LED light sources, and associated with each first image to indicate the representative value of the junction temperature at each LED light source calculated by the information processing device. Display the second image. In the information output system, the information processing device obtains the currents and voltages supplied to the plurality of LED light sources and the temperature of the LED light sources, and calculates the representative value of the junction temperature. Also, the terminal device displays a plurality of first images and second images. A user visually recognizes the first image and the second image using the terminal device. A user can use the terminal device to check the representative value of the junction temperature of the LED light source. The user can take action according to the representative value of the junction temperature. In this way, the user can use the terminal device to manage the states of the plurality of LED light sources.

The information output system further includes a communication device, wherein the information processing device transmits the calculated representative value of the junction temperature at each LED light source to the communication device, and the communication device displays the plurality of first images. and second data for displaying the second image showing the representative value of the junction temperature at each LED light source received to the terminal device, wherein the terminal device The plurality of first images and the second images may be displayed based on the received first data and second data. The information processing device transmits the acquired information to the communication device, and the communication device transmits the first data and the second data to the terminal device. The terminal device displays the first image based on the first data and displays the second image based on the second data. The transmission of data from the communication device to the terminal device enables stable output of information without imposing a burden on the information processing device. Note that in a form in which the load on the information processing apparatus due to data transmission is small, the information processing apparatus may transmit data to the terminal device.

In the information output system, the information processing device displays the first data for displaying the plurality of first images, and the second image showing the received representative value of the junction temperature in each LED light source. to the terminal device, and the terminal device displays the plurality of first images and the second images based on the received first data and second data good. The information processing device transmits first data and second data based on the acquired information to the terminal device, the terminal device displays the first image based on the first data, and displays the second image based on the second data. Display an image. By having the information processing device transmit data to the terminal device, it is possible to reduce the number of devices required for the information output system.

In the information output system, the information processing device determines the deterioration state of each LED light source based on the relationship between the representative value of the junction temperature of each LED light source and the lighting time of each LED light source, and the terminal device: The second image may also indicate the deterioration state of each LED light source determined by the information processing device. The information processing device determines the deterioration state of the LED light source based on the fact that the longer the lighting time, the more the LED element deteriorates, and the higher the junction temperature, the faster the deterioration progresses. The user can use the terminal device to check the deterioration state of the LED light source and take measures according to the deterioration state of the LED light source.

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be specifically described below with reference to the drawings showing its embodiments.
<Embodiment 1>
FIG. 1 is a schematic diagram showing a configuration example of an information output system 100 according to Embodiment 1 that outputs information about the state of an LED light source. The information output system 100 executes an information output method for outputting information regarding the LED light sources provided in the machine 2 . A machine 2 and an information processing device 1 are installed at each of a plurality of bases 20 . A plurality of information processing apparatuses 1 are connected to a communication network 5 such as the Internet. A communication device 4 is connected to the communication network 5 . Furthermore, the information output system 100 includes a terminal device 3 . The information output system 100 may include multiple terminal devices 3 .

Machine 2 is equipped with an LED light source. The machine 2 is, for example, a printing machine or an industrial machine such as a device for manufacturing liquid crystal panels for image display. The base 20 is, for example, a factory. An information processing device 1 is connected to a machine 2 . A plurality of machines 2 may be installed at one site 20 . When a plurality of machines 2 are installed, the plurality of machines 2 and the plurality of information processing apparatuses 1 may be connected one-to-one, and the plurality of machines 2 are connected to one information processing apparatus 1. may be The information processing device 1 may be mounted on the machine 2 .

Communication network 5 may include a wireless communication network. The communication device 4 and the information processing device 1 communicate with each other via the communication network 5 . The terminal device 3 is portable and carried by the user. For example, the terminal device 3 uses wireless communication. The terminal device 3 communicates with the communication device 4 via the communication network 5 . The information processing device 1 acquires information about the state of the LED light source provided in the machine 2, the communication device 4 stores the information acquired by the information processing device 1, and the terminal device 3 outputs the information.

FIG. 2 is a block diagram showing a functional configuration example of the information processing device 1 and the machine 2 installed at the site 20 according to the first embodiment. Machine 2 comprises a plurality of LED light sources 21 . A plurality of LED light sources 21 are provided at positions used in the UV irradiation process. For example, a plurality of LED light sources 21 are used in one process and provided at one position. Alternatively, the plurality of LED light sources 21 may be used in a plurality of steps and provided at a plurality of positions. Each step performed by machine 2 is an example of an industrial process. The LED light source 21 includes a plurality of LED elements 211 that emit UV light. For example, the LED light source 21 has a flat plate shape, and a plurality of LED light sources 21 are arranged side by side at predetermined locations in the machine 2 . A power supply unit 22 for supplying power to the plurality of LED light sources 21 is connected to the plurality of LED light sources 21 . A control unit 23 that controls the power supply unit 22 is connected to the power supply unit 22 . Also, the plurality of LED light sources 21 are connected to the information processing device 1 .

The LED light source 21 has a substrate 213 , a plurality of LED elements 211 and a temperature sensor 212 . For example, the substrate 213 is made of metal coated with resin and has a flat plate shape. A plurality of LED elements 211 are mounted on the substrate 213 . For example, the plurality of LED elements 211 are arranged in a matrix. A plurality of LED light sources 21 arranged on the substrate 213 form a light-emitting surface, which is a plane from which light is emitted. Although FIG. 2 shows an example in which six LED elements 211 are included in the LED light source 21, the number of LED elements 211 included in the LED light source 21 may be another number. A plurality of LED elements 211 are connected in series with each other and connected to the power supply section 22 . Some or all of the plurality of LED elements 211 may be connected in parallel. By being supplied with power from the power supply unit 22, the LED element 211 lights up and emits UV light.

A temperature sensor 212 is arranged at a predetermined position on the substrate 213 . For example, temperature sensor 212 is a thermistor. The LED light source 21 is connected to the information processing device 1 . The LED light source 21 inputs the temperature value measured by the temperature sensor 212 to the information processing device 1 . For example, the information processing device 1 is directly connected to the temperature sensor 212 . The temperature sensor 212 measures the temperature of the LED light source 21 , and the information processing device 1 acquires the temperature value measured by the temperature sensor 212 . Alternatively, the temperature sensor 212 may be connected to the information processing apparatus 1 via the power supply unit 22, and the power supply unit 22 acquires the temperature value measured by the temperature sensor 212 and processes the temperature value. You may input to the apparatus 1. A plurality of temperature sensors 212 may be provided in the LED light source 21 . Each of the plurality of LED light sources 21 has the same configuration. The LED light source 21 may include other mechanisms such as a cooling fan.

The control section 23 controls the operation of the power supply section 22 . At the timing to light the LED element 211, the control section 23 inputs a control signal for lighting to the power supply section 22, and the power supply section 22 supplies power to the LED light source 21 according to the control signal. Electric power is supplied to the plurality of LED elements 211, and the plurality of LED elements 211 are lit. At the timing to turn off the LED elements 211, the control unit 23 inputs a control signal for turning off the light to the power supply unit 22, the power supply unit 22 stops supplying power according to the control signal, and the plurality of LED elements 211 turn off. do. The control unit 23 may cause the power supply unit 22 to stop supplying power by stopping the control signal. When the plurality of LED elements 211 are turned on, the LED light source 21 is turned on, and when the plurality of LED elements 211 are turned off, the LED light source 21 is turned off. By turning on the LED light source 21, UV is emitted, and the machine 2 performs each process using UV.

The power supply unit 22 has a measuring unit 221 that measures the current and voltage supplied to the LED light source 21 . The power supply unit 22 inputs the current and voltage values measured by the measurement unit 221 to the information processing apparatus 1 . The information processing device 1 may be connected to the LED light source 21 and the power supply unit 22 via a communication network such as a LAN (local area network).

The power supply unit 22 and the control unit 23 are provided in the machine 2, for example. Although FIG. 2 shows an example in which a plurality of LED light sources 21 are connected to a single power supply section 22, a plurality of power supply sections 22 are provided, and the LED light sources 21 and power supply sections 22 are connected one-to-one. may be The measurement unit 221 may be outside the power supply unit 22 . When a plurality of machines 2 are present at one site 20 , the control section 23 may be configured to control a plurality of power supply sections 22 provided in the plurality of machines 2 . The power supply unit 22 may supply power to a plurality of LED light sources 21 provided on a plurality of machines 2 .

The information processing device 1 is a computer such as a server device. The information processing apparatus 1 may be a network card type device. The information processing device 1 includes an arithmetic unit 11 , a memory 12 , a storage unit 13 , a drive unit 14 , a communication unit 15 and an interface unit 16 . The calculation unit 11 is configured using, for example, a CPU (Central Processing Unit), a GPU (Graphics Processing Unit), or a multi-core CPU. The calculation unit 11 may be configured using a quantum computer. The memory 12 stores temporary data generated along with computation. The memory 12 is, for example, a RAM (Random Access Memory). The storage unit 13 is non-volatile and is, for example, a hard disk. A drive unit 14 reads information from a recording medium 10 such as an optical disc or a portable memory. The communication unit 15 is connected to the communication network 5 and communicates with devices external to the information processing device 1 through the communication network 5 . The interface section 16 is connected to the plurality of LED light sources 21 and the power supply section 22 .

The calculation unit 11 causes the drive unit 14 to read the computer program 131 recorded on the recording medium 10 and causes the storage unit 13 to store the read computer program 131 . The calculation unit 11 executes processing necessary for the information processing apparatus 1 according to the computer program 131 . The computer program 131 may be downloaded from the outside of the information processing apparatus 1, and the information processing apparatus 1 may be provided with the storage unit 13 in which the computer program 131 is stored in advance. In these cases, the information processing apparatus 1 does not have to include the drive unit 14 . Note that the information processing apparatus 1 may be realized by a plurality of computers.

The storage unit 13 stores light source data 132 in which information about the states of the plurality of LED light sources 21 is recorded. FIG. 3 is a conceptual diagram showing an example of the contents of the light source data 132. As shown in FIG. Information about the machine 2 is recorded in the light source data 132 . In the example shown in FIG. 3, as the information about the machine 2, base identification information for identifying the base 20, machine identification information for identifying the machine 2, the name of the base 20, and the type of the machine 2 are recorded. It is The name may be the name of the machine 2 or the name of the business that uses the machine 2 . Information about the machine 2 may not be included in the light source data 132, or may be included in the light source data 132 only partially.

The light source data 132 includes data regarding multiple LED light sources 21 . Data relating to one LED light source 21 includes identification information for identifying the LED light source 21 . In association with the time, lighting information indicating whether the LED light source 21 is on or off, current and voltage values supplied to the LED light source 21, and temperature values measured by the temperature sensor 212 are recorded. there is The time information may include information indicating the date. In addition, representative values of the junction temperatures of the plurality of LED elements 211 are recorded in association with time. The junction temperature is the temperature of the junction of the LED element 211 . The representative value of the junction temperature is the representative value of the junction temperature of the LED elements 211 of the LED light source 21 . For example, the representative value corresponds to the average value, median value, or mode value of the junction temperatures of the plurality of LED elements 211 . The higher the junction temperature, the faster the deterioration of the LED element 211 . Therefore, if the representative value of the junction temperature is too high, it means that the temperature of the LED light source 21 is abnormal. In place of the time, the data relating to one LED light source 21 included in the light source data 132 may record the lighting time, which is the sum of the time elapsed while the LED light source 21 is lit.

Furthermore, in the data about one LED light source 21, the UV illuminance maintenance rate emitted by the LED element 211 included in the LED light source 21 and the deterioration time, which is the time when the LED light source 21 deteriorates in the future, are recorded. ing. The UV illuminance maintenance rate indicates the ratio of the current UV illuminance to the initial UV illuminance. The deterioration time indicates the length of lighting time from the present until the maintenance rate becomes equal to or less than a predetermined threshold. For example, the threshold is the maintenance rate at which a decrease in UV illumination begins to interfere with processes performed on machine 2 . The light source data 132 may record other information about each LED light source 21 such as the operating time of the cooling fan.

FIG. 4 is a block diagram showing an example of the internal functional configuration of the communication device 4. As shown in FIG. The communication device 4 is a computer such as a server device. The communication device 4 includes an arithmetic unit 41 , a memory 42 , a storage unit 43 , a drive unit 44 and a communication unit 45 . The computing unit 41 is configured using, for example, a CPU, GPU, or multi-core CPU. The computing unit 41 may be configured using a quantum computer. The memory 42 stores temporary data generated along with computation. The memory 42 is, for example, RAM. The storage unit 43 is non-volatile and is, for example, a hard disk. A drive unit 44 reads information from a recording medium 40 such as an optical disc or a portable memory. The communication unit 45 is connected to the communication network 5 and communicates with devices external to the communication device 4 through the communication network 5 .

The calculation unit 41 causes the drive unit 44 to read the computer program 431 recorded on the recording medium 40 and causes the storage unit 43 to store the read computer program 431 . The computing unit 41 executes processing necessary for the communication device 4 according to the computer program 431 . The computer program 431 may be downloaded from the outside of the communication device 4, and the communication device 4 may be provided with the storage unit 43 in which the computer program 431 is stored in advance. In these cases, the communication device 4 does not have to include the drive section 44 . Note that the communication device 4 may be realized by a plurality of computers, and may be configured using a cloud.

The storage unit 43 stores a light source DB (database) 432 . The light source DB 432 includes multiple light source data 132 . The light source data 132 included in the light source DB 432 is the light source data 132 generated by each of the plurality of information processing apparatuses 1 included in the information output system 100 .

FIG. 5 is a block diagram showing an example of the internal functional configuration of the terminal device 3. As shown in FIG. The terminal device 3 is a portable computer used by a user, such as a smart phone or a tablet computer. The terminal device 3 includes an arithmetic unit 31 , a memory 32 , a storage unit 33 , an operation unit 34 , a display unit 35 and a communication unit 36 . The calculation unit 31 is configured using, for example, a CPU, GPU, or multi-core CPU. The calculation unit 31 may be configured using a quantum computer. The memory 32 stores temporary data generated along with computation. The memory 32 is, for example, RAM. The storage unit 33 is nonvolatile, such as a hard disk or nonvolatile semiconductor memory. The operation unit 34 accepts input of information such as text by accepting an operation from the user. The operation unit 34 is, for example, a touch panel, keyboard, or pointing device. The display unit 35 displays images. The display unit 35 is, for example, a liquid crystal display or an EL display (Electroluminescent Display). The operation section 34 and the display section 35 may be integrated. The communication unit 36 communicates with an external device of the terminal device 3 through wired or wireless communication.

The storage unit 33 stores a computer program 331 . The computer program 331 is read from the recording medium 30 such as an optical disc or a portable memory storing the computer program 331 , downloaded using the communication section 36 , and stored in the storage section 33 . For example, computer program 331 is downloaded from communication device 4 . The computer program 331 may be stored in the storage unit 33 in advance. Alternatively, computer program 331 may be stored in memory 32 instead of storage unit 33 . For example, the computer program 331 may be downloaded and stored in the memory 32 when executing the processing related to the information output system 100, and deleted from the memory 32 when the processing related to the information output system 100 is completed. The calculation unit 31 executes necessary processing according to the computer program 331 .

Next, processing executed by the information output system 100 according to the first embodiment will be described. At each site 20, the control unit 23 controls the operation of the power supply unit 22 by inputting a control signal to the power supply unit 22 according to a predetermined program or instructions input from the outside. The power supply unit 22 supplies power to each LED light source 21 according to the control by the control unit 23 to light the plurality of LED elements 211 included in each LED light source 21 . In addition, the power supply unit 22 turns off the plurality of LED elements 211 included in each LED light source 21 by stopping the supply of electric power under the control of the control unit 23 . In this manner, the control unit 23 controls lighting and extinguishing of the plurality of LED light sources 21 .

In parallel with the control unit 23 controlling the lighting and extinguishing of each LED light source 21 , the information output system 100 executes processing for acquiring information regarding the state of each LED light source 21 . FIG. 6 is a flowchart showing the procedure of information acquisition processing executed by the information output system 100 according to the first embodiment. A step is abbreviated as S below. The information processing device 1 obtains the values of the current and voltage supplied to the LED light source 21 by the power supply unit 22, and obtains the temperature of the LED light source 21 (S11). In S<b>11 , the measurement unit 221 measures current and voltage, and the power supply unit 22 inputs the measured current and voltage values to the information processing apparatus 1 . The information processing device 1 acquires the current and voltage values at the interface unit 16 . Also, the temperature sensor 212 measures the temperature of the LED light source 21 , and the information processing apparatus 1 acquires the temperature value measured by the temperature sensor 212 through the interface unit 16 . The temperature sensor 212 may input the measured temperature value to the information processing apparatus 1, the temperature sensor 212 inputs a signal corresponding to the temperature to the interface unit 16, and the calculation unit 11 calculates the temperature based on the input signal. may be determined.

The information processing device 1 then stores the time, lighting information indicating whether the LED light source 21 is lit or not, and the acquired current, voltage, and temperature values in the storage unit 13 (S12). . In S<b>12 , the calculation unit 11 generates lighting information according to the current and voltage acquired from the power supply unit 22 . For example, when sufficient current and voltage values for lighting the LED light source 21 are acquired, the calculation unit 11 generates lighting information indicating lighting, and the acquired current or voltage value is necessary for lighting. If it does not reach the desired value, it generates lighting information indicating that it is turned off. In addition, the control unit 23 is connected to the interface unit 16, the interface unit 16 acquires from the control unit 23 the details of control of lighting and extinguishing by the control unit 23, and the calculation unit 11 generates lighting information according to the acquired control details. You may

Further, the calculation unit 11 measures the time when S11 or S12 is executed. The information processing device 1 may have a clock section for measuring time. In S12, the calculation unit 11 associates and records the time, the lighting information, and the current, voltage, and temperature values in the light source data 132 stored in the storage unit 13, thereby recording the time, the lighting information, the current, and the voltage. and temperature are stored in the storage unit 13 . When past information is recorded in the light source data 132, the calculation unit 11 adds time, lighting information, current, voltage, and temperature to the past information. Therefore, the light source data 132 records the history of time, lighting information, current, voltage, and temperature. In S<b>12 , the calculation unit 11 may record the lighting time in the light source data 132 .

The information processing device 1 next calculates a representative value of the junction temperature of the plurality of LED elements 211 included in the LED light source 21 based on the current, voltage and temperature values (S13). In S<b>13 , the calculation unit 11 calculates the representative value of the junction temperature by a conventional calculation method based on the current and voltage supplied to the LED light source 21 and the temperature measured by the temperature sensor 212 . The representative value is a value representing the junction temperatures of the plurality of LED elements 211 included in the LED light source 21, and is a value estimated by calculation. For example, the representative value is the junction temperature of a specific LED element 211 or the average, median, mode, or maximum value of the junction temperatures of a plurality of LED elements 211 .

In S13, the calculation unit 11 calculates, for example, the power consumption of the LED element 211 from the current and the voltage, and calculates the power consumption, the temperature measured by the temperature sensor 212, and the substrate 213 and the LED element 211 by the thermal resistance method. Calculate the typical value of the junction temperature from the thermal resistance. For example, the thermal resistance value is stored in advance in the storage unit 13 or included in the computer program 131 in advance. The calculation unit 11 may calculate the representative value of the junction temperature based on the history of current, voltage, and temperature values. In S13, the calculation unit 11 further records the calculated representative value of the junction temperature in the light source data 132 in association with the current, voltage, and temperature values used in the calculation, thereby storing the representative value of the junction temperature in the storage unit. 13. When past information is recorded in the light source data 132, the calculation unit 11 adds the representative value of the junction temperature to the past information. Therefore, the history of the representative value of the junction temperature is recorded in the light source data 132 .

The information processing device 1 then calculates the UV illuminance maintenance rate of each LED element 211 included in the LED light source 21 as information representing the state of the LED light source 21 (S14). The UV illuminance is the illuminance of UV emitted by the LED element 211 . The UV illuminance maintenance rate indicates the ratio of the current UV illuminance of the LED element 211 to the initial UV illuminance of the LED element 211 .

FIG. 7 is a graph schematically showing the change over time of the retention rate when the junction temperature is constant. The horizontal axis in the figure indicates the lighting time, and the vertical axis indicates the maintenance rate of the UV illuminance. The lighting time is the time elapsed while the LED light source 21 continues to be lit. In general, the longer the lighting time, the more the LED element 211 deteriorates and the UV illuminance decreases. That is, the longer the lighting time, the lower the maintenance rate. When the maintenance rate is lowered to some extent, the amount of UV light decreases and the amount of UV light necessary for the machine 2 becomes insufficient. Assume that the LED light source 21 has deteriorated when the maintenance rate is equal to or less than a predetermined threshold. The speed at which the LED light source 21 deteriorates depends on the junction temperature of the LED element 211 . That is, the change in maintenance factor differs depending on the junction temperature. The higher the junction temperature, the faster the degradation progresses and the lower the retention rate. In FIG. 7, the solid line indicates the maintenance rate when the junction temperature is a predetermined constant temperature, the broken line indicates the maintenance rate when the junction temperature is higher, and the maintenance rate when the junction temperature is higher. The one-dot chain line indicates the retention rate. The rate of change of the maintenance rate with respect to the lighting time differs depending on the junction temperature. As the junction temperature is higher, the LED light source 21 deteriorates in a shorter lighting time.

FIG. 8 is a graph schematically showing the change over time of the actual maintenance factor of the LED element 211. As shown in FIG. The horizontal axis in the figure indicates the lighting time, and the vertical axis indicates the maintenance rate of the UV illuminance. Since the junction temperature is not constant in practice, the rate of change of the maintenance rate with respect to the length of the lighting time varies according to the junction temperature. Therefore, as shown in FIG. 8, the actual maintenance rate decreases according to the lighting time while changing the rate of change.

In S<b>14 , the calculation unit 11 calculates the UV illuminance maintenance rate based on the time recorded in the light source data 132 , the lighting information, and the history of the representative value of the junction temperature. For example, the calculation unit 11 identifies the time when the LED light source 21 was lit from the time and the lighting information, and sets the representative value of the junction temperature associated with the identified time as the junction temperature at the identified time. Further, the calculation unit 11 determines the relationship between the lighting time and the junction temperature from the relationship between the time and the junction temperature, and determines the LED The maintenance rate at each time when the light source 21 was turned on is sequentially calculated. For example, the change rate of the retention rate according to the junction temperature is stored in advance in the storage unit 13 or included in the computer program 131 in advance. For example, the calculation unit 11 calculates the current maintenance rate by generating a graph as shown in FIG.

Note that the information processing apparatus 1 may calculate the UV illuminance maintenance rate by other methods. For example, the machine 2 is equipped with an illuminometer or a camera, and the information processing device 1 acquires the UV illuminance measured by the illuminometer or the UV brightness measured by the camera, and maintains the UV illuminance based on the acquired information. You can calculate the rate. When the lighting time is recorded in the light source data 132, the calculation unit 11 may calculate the maintenance rate from the relationship between the recorded lighting time and the junction temperature.

In S<b>14 , the calculation unit 11 stores the maintenance rate in the storage unit 13 by recording the maintenance rate in the light source data 132 stored in the storage unit 13 . When the past maintenance rate is recorded in the light source data 132, the calculation unit 11 may update the recorded maintenance rate, and may record the history of the maintenance rate.

The information processing device 1 then calculates the deterioration timing indicating the timing at which each LED light source 21 deteriorates (S15). The deterioration time is a value estimated by calculation. In S15, the calculation unit 11 generates, for example, a graph of changes in the maintenance rate as shown in FIG. 8, extrapolates the graph, and calculates the length of lighting time from the present until the maintenance rate becomes equal to or less than the threshold. The length of the lighting time from now until the maintenance rate becomes equal to or less than the threshold is the deterioration time of the LED light source 21 . For example, the retention rate threshold is stored in the storage unit 13 in advance or included in the computer program 131 in advance. For example, if the maintenance rate calculated in S14 is equal to or less than the threshold, the calculation unit 11 sets the deterioration time to zero or a negative value, or stores information indicating that the LED light source 21 has already deteriorated. Generate.

In S<b>15 , the calculation unit 11 stores the deterioration time of the LED light source 21 in the storage unit 13 by recording the deterioration time in the light source data 132 stored in the storage unit 13 . When past deterioration times are recorded in the light source data 132, the calculation unit 11 may update the recorded deterioration times or may record a history of deterioration times. The information processing apparatus 1 determines the deterioration state of each LED light source 21 by the processes of S14 and S15.

The information processing device 1 executes the processes of S11 to S15 for each of the plurality of LED light sources 21 connected. The information processing device 1 may acquire other information about each LED light source 21 and record it in the light source data 132 . The information processing apparatus 1 repeatedly executes the processes of S11 to S15 as needed.

The information processing device 1 transmits the light source data 132 to the communication device 4 (S16). In S<b>16 , the calculation unit 11 causes the communication unit 15 to transmit the light source data 132 stored in the storage unit 13 to the communication device 4 via the communication network 5 . The calculation unit 11 may transmit all the light source data 132, or may extract the latest information about each LED light source 21 from the light source data 132 and transmit the extracted information. The information processing apparatus 1 executes the process of S16 each time the processes of S11 to S15 are executed, or periodically. The information processing device 1 may receive a data transmission request from the communication device 4 and transmit the light source data 132 in response to the data transmission request.

The communication device 4 receives the light source data 132 transmitted from the information processing device 1 at the communication unit 45 (S17). The communication device 4 stores the received light source data 132 in the storage unit 43 (S18). In S<b>18 , the calculation unit 41 stores the light source data 132 in the storage unit 43 by recording the light source data 132 in the light source DB 432 stored in the storage unit 43 . The communication device 4 receives the light source data 132 transmitted from each of the plurality of information processing devices 1 in S17, and records the respective light source data 132 in the light source DB 432 in S18. The information output system 100 ends the information acquisition process. The light source DB 432 is updated as needed by executing the processes of S11 to S15 as needed and by executing the processes of S16 to S18 each time the processes of S11 to S15 are executed or periodically.

The information output system 100 executes processing for outputting information regarding the state of each LED light source 21 . The communication device 4 functions as a server device that provides information to the terminal device 3 , and the terminal device 3 functions as a client device that outputs information provided from the communication device 4 . For example, the computer program 431 includes a web server program, and the computing unit 41 of the communication device 4 transmits information to the terminal device 3 according to the computer program 431 . For example, the computer program 331 includes a web browser program, and the computing unit 31 of the terminal device 3 displays the web page on the display unit 35 according to the computer program 331, thereby receiving information provided from the communication device 4. Output.

The terminal device 3 displays a list of multiple machines 2 included in the information output system 100 on the display unit 35 . The communication device 4 transmits information about the plurality of machines 2 recorded in the light source DB 432 to the terminal device 3, and the terminal device 3 displays a list of the plurality of machines 2 on the display unit 35 based on the received information. do. The communication device 4 may store information about the plurality of machines 2 in the storage unit 43 separately from the light source DB 432 and transmit the information to the terminal device 3 .

FIG. 9 is a schematic diagram showing a display example of a list of a plurality of machines 2. As shown in FIG. For each of the plurality of machines 2 included in the information output system 100, information specific to the machine 2 for specifying the machine 2 is displayed. As information unique to the machine 2, site identification information, machine identification information, the name of the site 20, and the machine type are displayed. Only part of the site identification, machine identification, name and machine type may be displayed, and other information unique to the machine 2 may be displayed. A user using the terminal device 3 visually recognizes the displayed list and operates the operation unit 34 to specify one of the machines 2 . When a plurality of machines 2 exist at one site 20, the machine identification information, name, and machine type of the plurality of machines 2 may be displayed in association with one site identification information. First, a list of a plurality of bases 20 may be displayed, and when one of the bases 20 is designated, a list of machines 2 installed at the designated base 20 may be displayed.

When one of the machines 2 is specified, the terminal device 3 displays on the display unit 35 a reception image for accepting a request for information regarding the state of the LED light source 21 provided in the specified machine 2 . FIG. 10 is a schematic diagram showing an example of a reception image. Information for specifying the designated machine 2 is displayed, and a button for accepting a request for information is displayed. A button labeled "LED light source status" shown in FIG. A button labeled “LED light source usage time” is a button for receiving a request for information on the usage time of the LED light source 21 . By using this button, the user can request information about the usage time of the LED light source 21, such as the lighting time of the LED light source 21 and the operating time of the cooling fan. A button labeled “Abnormality History” is a button for receiving a request for information regarding an abnormality in the LED light source 21 . By using this button, the user can request the abnormality that is currently occurring in the LED light source 21 or the history of the abnormality that has occurred.

9 and 10 are displayed on the display section 35 in response to the user operating the operation section 34 and inputting a display instruction. The image for accepting the request for information may be displayed on the display unit 35 all the time, or may be displayed periodically. The image for accepting the request for information may be displayed on the display unit 35 in response to a specific trigger other than an instruction from the user, such as a predetermined time.

FIG. 11 is a flow chart showing a procedure for outputting information about the state of the LED light source 21 by the information output system 100 . The terminal device 3 displays a reception image as shown in FIG. 10 on the display unit 35, and receives a request for information regarding the state of the LED light source 21 (S201).

In S<b>201 , the operation unit 31 receives a request for information by the user operating the operation unit 34 . For example, the user operates the operation unit 34 to input a request for information by tapping or otherwise specifying a button labeled "LED light source status" on the reception image shown in FIG. The calculation unit 31 receives requests for information. The terminal device 3 then transmits an information request to the communication device 4 (S202). In S<b>202 , the calculation unit 31 causes the communication unit 36 to transmit data indicating a request for information to the communication device 4 via the communication network 5 . The data indicating the information request may include information for identifying the machine 2 .

The communication device 4 receives the information request (S203). In S203, the communication unit 45 receives data indicating a request for information. The communication device 4 then generates first data for displaying a plurality of first images corresponding to the plurality of LED light sources 21 provided on the machine 2 (S204). In S<b>204 , the calculation unit 41 generates first data representing a plurality of first images based on the light source data 132 related to the machine 2 recorded in the light source DB 432 . The calculation unit 41 generates first data, for example, html (Hypertext Markup Language) data.

In S204, the calculation unit 41 determines the color of the first image according to the representative value of the junction temperature of each LED light source 21 recorded in the light source data 132, and generates a plurality of first images each having the determined color. Generate first data to represent. For example, the calculation unit 41 causes the first image to have different colors depending on whether the representative value of the junction temperature is equal to or higher than a predetermined set value and when the representative value is less than the set value. For example, when the representative value of the junction temperature is equal to or higher than a predetermined set value, the color of the first image is set to yellow, and when the representative value of the junction temperature is less than the set value, the color of the first image is set to blue. be done.

Further, the calculation unit 41 determines the color of the second image according to the deterioration state of each LED light source 21 recorded in the light source data 132, and sets the first data representing a plurality of first images each having the determined color. to generate For example, the calculation unit 41 changes the color of the first image depending on whether the UV illuminance maintenance rate of the LED element 211 included in the LED light source 21 is equal to or less than the threshold and when the maintenance rate exceeds the threshold. For example, the color of the first image is set to red when the UV illuminance maintenance rate is equal to or less than the threshold, and the color of the first image is set to blue or yellow when the maintenance rate exceeds the threshold. For example, the calculation unit 41 changes the color of the first image depending on whether the deterioration time of the LED light source 21 is before a predetermined set time or after the set time. Note that the calculation unit 41 may generate the first data by reading the first data stored in the storage unit 43 in advance.

The communication device 4 transmits the first data to the terminal device 3 (S205). In S<b>205 , the calculation unit 41 causes the communication unit 45 to transmit the first data to the terminal device 3 . The terminal device 3 receives the first data at the communication unit 36 (S206). The terminal device 3 then displays the plurality of first images on the display unit 35 (S207). In S207, the calculation unit 31 displays a plurality of first images corresponding to the plurality of LED light sources 21 provided in the machine 2 on the display unit 35 based on the received first data.

FIG. 12 is a schematic diagram showing an example of a plurality of first images. A plurality of first images 61 corresponding to a plurality of LED light sources 21 are displayed side by side. Light source identification information of the corresponding LED light source 21 is attached to each first image 61 . The first images 61 include images representing the plurality of LED elements 211 included in the LED light sources 21 , and each first image 61 is an image simulating the light emitting surface of each LED light source 21 . Since the first image 61 simulates the light emitting surface of the LED light source 21, the user who visually recognizes the first image 61 can easily recognize that the first image 61 is related to the LED light source 21. can be done.

The user can specify one of the plurality of first images 61 by operating the operation unit 34 . By specifying one of the plurality of first images 61, the LED light source 21 that should output the information about the state is specified among the plurality of LED light sources 21. FIG. The user, who visually recognizes the first image 61 simulating the light emitting surface of the LED light source 21, designates the LED light source 21 to output the information about the state as if selecting one LED light source 21 from among the plurality of LED light sources 21. can do.

Also, in S207, the calculation unit 31 displays the first image 61 having the color determined in S204. That is, the calculation unit 31 adjusts the color of the first image 61 to a color corresponding to the representative value of the junction temperature in the LED light source 21 and to a color corresponding to the deterioration state of the LED light source 21 . In the example of FIG. 12 , the color of the first image 61 corresponding to the LED light source 21 whose light source identification information is 002 is different from the colors of the other first images 61 . For example, when the representative value of the junction temperature of the LED light source 21 whose light source identification information is 002 is equal to or higher than a predetermined set value, the color of the first image 61 corresponding to the LED light source 21 is yellow. For example, if the UV illuminance maintenance rate of the LED element 211 included in the LED light source 21 whose light source identification information is 002 is equal to or less than the threshold, or if the deterioration time of the LED light source 21 is before the predetermined set time, the The color of the first image 61 corresponding to the LED light source 21 is red.

Since the color of the first image 61 is adjusted according to the representative value of the junction temperature, the first image 61 corresponding to the LED light source 21 whose representative value of the junction temperature is different from that of the other LED light sources 21 is the same as the other first image. 61 different colors. Further, since the color of the first image 61 is adjusted according to the deterioration state of the LED light source 21, the first image 61 corresponding to the LED light source 21 whose deterioration state is different from that of the other LED light sources 21 is the same as the other first image. 61 different colors. By checking the color of the first image 61, the user can recognize that there is an abnormality in the temperature or deterioration state of the LED light source 21. FIG. By confirming the first images 61 with different colors among the plurality of first images 61, the user can recognize the LED light sources 21 with different representative values of junction temperatures or deterioration states. Therefore, the user can easily select the abnormal LED light source 21 as the LED light source 21 to output the information about the state.

The terminal device 3 receives designation of one LED light source 21 from among the plurality of LED light sources 21 (S208). In S<b>208 , the calculation unit 31 accepts designation of the LED light source 21 by the user operating the operation unit 34 . For example, when the user desires information about a certain LED light source 21, the user operates the operation unit 34 to select the LED light source 21 from among the plurality of first images 61 as shown in FIG. Designation of the LED light source 21 is input by designating the first image 61 by a method such as tapping. The terminal device 3 then transmits designation information designating one LED light source 21 to the communication device 4 (S209). In S<b>209 , the calculation unit 41 generates designation information according to the received designation of the LED light source 21 and causes the communication unit 36 to transmit the designation information to the communication device 4 .

The communication device 4 receives the designation information at the communication unit 45 (S210). The communication device 4 then generates first data for displaying a second image showing information about the state of the LED light source 21 designated by the designation information (S211). In S<b>211 , the calculation unit 41 generates second data representing a second image based on information about the designated LED light source 21 included in the light source data 132 recorded in the light source DB 432 . The calculation unit 41 generates second data, which is html data, for example. Note that the communication device 4 may store the second data in the storage unit 43 in advance, and the calculation unit 41 may generate the second data by reading the second data from the storage unit 43 .

The communication device 4 transmits the second data to the terminal device 3 (S212). In S<b>212 , the calculation unit 41 causes the communication unit 45 to transmit the second data to the terminal device 3 . The terminal device 3 receives the second data at the communication unit 36 (S213). The terminal device 3 then displays the second image on the display unit 35 (S214). In S<b>214 , the calculation unit 31 displays a second image showing information about the state of the designated LED light source 21 on the display unit 35 based on the received second data.

FIG. 13 is a schematic diagram showing a first example of the second image 62. As shown in FIG. FIG. 13 shows an example of displaying a second image 62 showing information about the state of the LED light source 21 whose light source identification information is 001. As shown in FIG. A second image 62 shows representative values of the junction temperature of the LED light source 21 . By viewing the second image 62, the user can confirm the representative value of the junction temperature, and confirm what the junction temperature of the LED element 211 included in the LED light source 21 is. can.

Also, the second image 62 indicates the deterioration state of the LED light source 21 . The deterioration state indicated by the second image 62 includes information indicating whether the LED light source 21 has already deteriorated or is in a normal state without deterioration. Further, the deterioration state indicated by the second image 62 includes the UV illuminance maintenance rate of the LED element 211 included in the LED light source 21 and the deterioration time of the LED light source 21 . The user can confirm the current deterioration state of the LED light source 21 by viewing the second image 62 .

FIG. 14 is a schematic diagram showing a second example of the second image 62. As shown in FIG. FIG. 14 shows an example of displaying a second image 62 showing information about the state of the LED light source 21 whose light source identification information is 002. As shown in FIG. A second image 62 as shown in FIG. 14 is displayed in response to designation of a first image 61 different from the other first images 61 in color corresponding to the representative value of the junction temperature. The current representative value of the junction temperature exceeds the set value, indicating that the LED element 211 is in a high temperature state. The user can confirm the representative value of the junction temperature for the LED light source 21 that has recognized that the representative value of the junction temperature is abnormal based on the color of the first image 61 . The user can confirm the specific value of the representative value of the junction temperature, and can know how abnormal the junction temperature of the LED element 211 is compared to the set value. The user notifies the worker waiting at the site 20 of the abnormality to cool down the LED light source 21, or stops the LED light source 21. corrective action can be taken.

FIG. 15 is a schematic diagram showing a third example of the second image 62. As shown in FIG. A second image 62 as shown in FIG. 15 is displayed in response to designation of a first image 61 different from the other first images 61 in a color corresponding to the state of deterioration of the LED light source 21 . It shows that the UV illuminance maintenance rate of the LED element 211 is equal to or less than the predetermined threshold value, and the LED light source 21 has already deteriorated. The user can confirm the deterioration state of the LED light source 21 that has been recognized as having a deterioration problem based on the color of the first image 61 . The user can take suitable measures for the LED light source 21 having a problem with the deterioration state by notifying the worker waiting at the site 20 of the deterioration state and exchanging the LED light source 21.例文帳に追加

FIG. 16 is a schematic diagram showing a fourth example of the second image 62. As shown in FIG. A second image 62 as shown in FIG. 16 is displayed in response to designation of a first image 61 different from the other first images 61 in a color corresponding to the state of deterioration of the LED light source 21 . The deterioration time of the LED light source 21 is 30 days later, indicating that it is before the predetermined set time. Regarding the LED light source 21 that the user recognizes that there is a problem in the state of deterioration based on the color of the first image 61, the user has the operator replace the LED light source 21 that is about to deteriorate, or replaces the LED light source 21 in the near future. It is possible to take suitable measures for the LED light source 21 whose deterioration time is near by checking the inventory in preparation for such a situation. Note that the terminal device 3 may simultaneously display the first image 61 and the second image 62 by a method such as displaying the second image 62 over the first image 61 .

The terminal device 3 then determines whether or not to display information about another LED light source 21 (S215). For example, when the user operates the operation unit 34 to receive an instruction to display information about another LED light source 21 , the calculation unit 31 determines to display information about the other LED light source 21 . For example, when the user operates the operation unit 34 to receive an instruction to end the display of information, the calculation unit 31 determines not to display information on other LED light sources 21 . When determining to display information about other LED light sources 21 (S215: YES), the terminal device 3 returns the process to S207 and displays the plurality of first images 61. FIG. Note that the terminal device 3 may return the process to S201 and display an image for accepting an information request as shown in FIG. 9 or 10 .

If it is determined not to display information about other LED light sources 21 ( S<b>215 : NO), the terminal device 3 ends the process of outputting information about the state of the LED light sources 21 . The processing of S201 to S215 is executed at arbitrary timing. Even if the processes of S201 to S203 are not performed, the information regarding the state of the LED light source 21 may be output by periodically performing the processes of S204 to S215. Alternatively, when an abnormality such as the representative value of the junction temperature of the LED light source 21 exceeding the set value occurs, the information regarding the state of the LED light source 21 is output by executing the processing of S204 to S215. good.

As described in detail above, in the present embodiment, the information processing device 1 acquires the current and voltage supplied to the LED light source 21 and the temperature of the LED light source 21, calculates the representative value of the junction temperature, to calculate the deterioration state of The information processing device 1 transmits information about the state of the LED light source 21 to the communication device 4, and the communication device 4 stores the information. The terminal device 3 displays a plurality of first images 61 corresponding to the plurality of LED light sources 21, and displays a second image 62 showing a representative value of the junction temperature at each LED light source 21. FIG. The communication device 4 transmits the first data and the second data necessary for displaying the first image 61 and the second image 62 to the terminal device 3 . Since the communication device 4 stores data and transmits the data to the terminal device 3 , it is possible to stably output information without imposing a burden on the information processing device 1 and the machine 2 . Note that in a mode in which the load on the information processing device 1 is small even if data is transmitted from the information processing device 1 to the terminal device 3, the information processing device 1 executes the processes of S203 to S205 and S210 to S212 to perform communication. The device 4 may relay communication between the information processing device 1 and the terminal device 3 .

The user can see the first image 61 and know that the information about the LED light source 21 will be output. For example, the user can select the LED light source 21 to output information by selecting one first image 61 out of the plurality of first images 61 . Also, the user can check the representative value of the junction temperature by looking at the second image 62 . Furthermore, the second image 62 shows the deterioration state of the LED light source 21 . The user can see the second image 62 and know the deterioration state of the LED light source 21 . For example, the user contacts a worker waiting at the base 20 to cool down the LED light source 21 with an abnormal junction temperature, or replace the deteriorated LED light source 21. Treatment can be performed according to the state of the light source 21 .

By using the information output system 100 in this way, the user can manage the states of the plurality of LED light sources 21 used at the plurality of bases 20 . By performing management according to the state of the LED light source 21, it is possible to prevent failure of the LED light source 21 or a decrease in illuminance that hinders industrial processes. Since failure of the LED light source 21 or reduction in illuminance can be prevented, the machine 2 can be prevented from becoming unusable, and the work efficiency of the machine 2 can be improved.

<Embodiment 2>
In the second embodiment, information about the state of the LED light source is output without using the communication device 4 . FIG. 17 is a schematic diagram showing a first example of the configuration of the information output system 100 according to the second embodiment. Information output system 100 does not include communication device 4 . A machine 2 and an information processing device 1 are installed at each of a plurality of bases 20 , and each information processing device 1 is connected to a communication network 5 . The terminal device 3 can communicate with a plurality of information processing devices 1 via the communication network 5 . The configuration of the information processing device 1 and the machine 2 installed at the site 20 and the configuration of the terminal device 3 are the same as those of the first embodiment.

The information processing apparatus 1 executes the processes of S11 to S15 similar to those of the first embodiment. That is, the information processing apparatus 1 acquires information about each LED light source 21 and stores the light source data 132 in which the representative value of the junction temperature of each LED light source 21 and the information representing the state of each LED light source 21 are recorded.

In the second embodiment, the information processing device 1 provides information to the terminal device 3 , and the terminal device 3 outputs the information provided from the information processing device 1 . For example, the computer program 131 includes a web server program, and the computing unit 11 of the information processing device 1 transmits information to the terminal device 3 according to the computer program 131 .

The information output system 100 executes the processes of S201 to S215. However, the processing of S203 to S205 and S210 to S212, which was executed by the communication device 4 in the first embodiment, is executed by the information processing device 1 in the second embodiment. The machine 2 is specified by the user operating the terminal device 3 , and the terminal device 3 transmits the information to the information processing device 1 storing information on the LED light source 21 provided in the specified machine 2 . Submit your request. The information processing device 1 generates first data and transmits it to the terminal device 3 , and the terminal device 3 displays the first image 61 . The terminal device 3 transmits designation information designating one LED light source 21 to the information processing device 1 . The information processing device 1 generates the second data and transmits it to the terminal device 3 , and the terminal device 3 displays the second image 62 . Thus, the information output system 100 outputs information about the state of the LED light source 21. FIG.

Also in the second embodiment, the information processing device 1 acquires information about the LED light source 21, and the terminal device 3 outputs the information about the state of the LED light source 21 by displaying the first image 61 and the second image 62. do. The user can check the information about the state of the LED light source 21 and take measures according to the state of the LED light source 21 . Thus, also in the second embodiment, the user can manage the states of the plurality of LED light sources 21 by using the information output system 100 . Since the information processing device 1 transmits data to the terminal device 3, the number of devices required for the information output system 100 can be reduced. For example, a small-scale information output system 100 can be configured at low cost.

FIG. 18 is a schematic diagram showing a second example of the configuration of the information output system 100 according to the second embodiment. The information output system 100 is provided in a base 20 such as a factory. A machine 2 and an information processing device 1 are installed at a site 20 . A power supply unit 22 is connected to a plurality of LED light sources 21 provided in the machine 2 , and a control unit 23 is connected to the power supply unit 22 . The power supply unit 22 and the control unit 23 are provided in the machine 2, for example. A plurality of machines 2 may be installed at the site 20 . The terminal device 3 can communicate with the information processing device 1 . The configurations of the information processing device 1, the machine 2, the power supply unit 22, the control unit 23, and the terminal device 3 are the same as those of the first embodiment. The information processing device 1 communicates with the terminal device 3 through the communication unit 15 . The terminal device 3 may communicate with the information processing device 1 directly, or may communicate with the information processing device 1 via a communication network such as a LAN.

The information processing apparatus 1 executes the processes of S11 to S15 similar to those of the first embodiment, thereby generating light source data 132 in which the representative value of the junction temperature of each LED light source 21 and information representing the state of each LED light source 21 are recorded. memorize As in the first example, the information output system 100 executes the processes of S201 to S215, and the information processing apparatus 1 executes the processes of S203 to S205 and S210 to S212. Thus, the information output system 100 outputs information about the state of the LED light source 21. FIG.

Also in the second example of Embodiment 2, the user can manage the states of the plurality of LED light sources 21 by using the information output system 100 . In the second example of Embodiment 2, the user can know the state of the LED light source 21 within the site 20 . The user can immediately take appropriate measures for the abnormal LED light source 21 by, for example, immediately cooling the LED light source 21 with an abnormal junction temperature.

In Embodiments 1 and 2, the example of using the UV illuminance maintenance rate of the LED element 211 as an index representing the deterioration state of the LED light source 21 is shown. The information output system 100 may use an index other than the maintenance rate as an index representing the deterioration state of the LED light source 21 . For example, the brightness of the LED element 211 may be used as an index. In Embodiments 1 and 2, the form in which information indicating the deterioration state of the LED light source 21, such as the maintenance rate of the UV illuminance, is output. The information output system 100 may output the representative value of the junction temperature of the LED light source 21 while not outputting the information indicating the deterioration state of the LED light source 21 .

The present invention is not limited to the contents of the above-described embodiments, and various modifications are possible within the scope of the claims. That is, the technical scope of the present invention also includes embodiments obtained by combining technical means appropriately modified within the scope of the claims.

1 information processing device 131 computer program 2 machine 21 LED light source 211 LED element 212 temperature sensor 22 power supply unit 221 measurement unit 3 terminal device 331 computer program 4 communication device 431 computer program 5 communication network 61 first image 62 second image

Claims (9)

Acquiring the current and voltage supplied for lighting a plurality of LED light sources each including a plurality of LED elements,
Get the temperature at each LED light source,
Based on the acquired history of current, voltage and temperature, calculate a representative value of the junction temperature of the plurality of LED elements included in each LED light source,
displaying a plurality of first images corresponding to the plurality of LED light sources;
An information output method for displaying a second image showing a representative value of junction temperature in each LED light source in association with each first image. 2. The information output method according to claim 1, wherein each first image simulates a light emitting surface of each LED light source. 3. The information output method according to claim 1, wherein the color of each first image is adjusted according to a representative value of junction temperature in each LED light source. Determining the deterioration state of each LED light source based on the relationship between the representative value of the junction temperature in each LED light source and the lighting time of each LED light source,
4. The information output method according to any one of claims 1 to 3, wherein the second image further indicates the deterioration state of each LED light source. 5. The information output method according to claim 4, wherein the color of each first image is adjusted according to the deterioration state of each LED light source. a plurality of LED light sources each including a plurality of LED elements;
a measuring unit that measures the current and voltage supplied to the plurality of LED light sources for lighting;
a temperature sensor that measures the temperature at each LED light source;
an information processing device;
A terminal device that outputs information,
The information processing device is
Acquiring the current and voltage measured by the measuring unit,
obtaining the temperature measured by the temperature sensor;
Based on the acquired history of current, voltage and temperature, calculate a representative value of the junction temperature of the plurality of LED elements included in each LED light source,
The terminal device
displaying a plurality of first images corresponding to the plurality of LED light sources;
An information output system for displaying a second image representing a representative value of junction temperatures in each LED light source calculated by the information processing device in association with each first image. further comprising a communication device,
The information processing device is
Transmitting the calculated representative value of the junction temperature at each LED light source to the communication device;
The communication device
first data for displaying the plurality of first images, and second data for displaying the second image indicating the representative value of the junction temperature at each of the received LED light sources, to the terminal device send and
The terminal device
7. The information output system according to claim 6, wherein the plurality of first images and the second images are displayed based on the received first data and second data. The information processing device is
first data for displaying the plurality of first images, and second data for displaying the second image indicating the representative value of the junction temperature at each of the received LED light sources, to the terminal device send and
The terminal device
7. The information output system according to claim 6, wherein the plurality of first images and the second images are displayed based on the received first data and second data. The information processing device is
Determining the deterioration state of each LED light source based on the relationship between the representative value of the junction temperature in each LED light source and the lighting time of each LED light source,
The terminal device
9. The information output system according to any one of claims 6 to 8, wherein the second image also showing the deterioration state of each LED light source determined by the information processing device is displayed.

Images