JP2011123628A - Illuminator of vending machine, vending machine, and method for controlling light color - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To improve visibility of commodity samples by controlling light colors of light sources following a change in use environments of a vending machine, such as weather conditions. <P>SOLUTION: An illuminator 2 is constituted of: a plurality of three-primary-color light sources 21 arrayed in a predetermined direction to illuminate each commodity sample; a sensor part 22 for measuring the peripheral light quantity, temperature and humidity of the three-primary-color light sources 21 respectively; and a control part 20 for controlling the light colors of the three-primary-color light sources 21 in accordance with a condition determined according to the combination of the light quantity, temperature and humidity measured and acquired by the sensor part 22. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to an illumination device having three primary color light sources for illuminating a product sample in a vending machine, a vending machine, and a light color control method.

  An illumination device for a product sample in a vending machine is shifting from a fluorescent lamp to a white LED (Light Emitting Diode) in consideration of energy saving. For example, Patent Document 1 discloses that when a person is detected by a newly added human body sensor, it is possible to reduce power consumption and easily recognize that the device is operating even from a distance. An illumination control device in which the illuminance level of the LED array is variable when it is not used and a vending machine including the same have been proposed.

  In addition, with the advent of full-color LEDs in which a set of R, G, and B LEDs is enclosed in a single package, the hue is changed by controlling the light color of these three primary color light sources, thereby providing a rendering effect. Technology to enhance is also known. For example, in Patent Document 2, in order to obtain an illumination light source capable of outputting light bulb color, daylight white, and daylight illumination light, and having good color rendering properties in all three colors, a plurality of light emission having different emission colors is provided. There have been proposed an illumination light source, an illumination system, and a dimming method for adjusting illumination intensity ratios of elements and outputting illumination light having a color temperature of four or more colors.

JP 2009-129136 A JP 2006-164879 A

  However, according to the technology disclosed in Patent Document 1, the fluorescent lamp and the white LED always emit light of a certain shade without depending on the environment such as weather conditions when using the vending machine. For this reason, there is a problem that the sample of the vending machine is difficult to see from a remote place depending on the weather. For example, on a rainy day, light may be absorbed by the asphalt road surface and the area around the vending machine may not be felt bright. Also, when the weather is rainy, foggy, snowy, etc., it is difficult to see the product sample, and furthermore, it is a color that feels cold when it is cold, or a color that feels heat when it is hot. There was a problem such as.

  According to the technique disclosed in Patent Document 2, multicolor light emission is possible by color adjustment. However, as described above, light is always emitted in the same color without depending on the environment such as weather conditions. In bad weather such as snow, there is still a problem that the product sample is still difficult to see and the effect of attracting customers cannot be obtained as expected.

  Therefore, the present invention has been made in view of the above problems, and it is possible to change the hue according to changes in the usage environment of the vending machine, such as weather conditions, and to improve the visibility of the product sample in the vending machine An object of the present invention is to provide a lighting device, a vending machine, and a light color control method.

  In order to solve the above-described problems, an illumination device for a vending machine according to a first aspect of the present invention includes at least one set of three primary color light sources that illuminate a product sample in the vending machine, and the peripheral light amount, temperature, and humidity of the three primary color light sources. A sensor unit that measures each of them, and a control unit that performs light color control of the three primary color light color sources according to conditions determined according to a combination of light quantity, temperature, and humidity that are measured and acquired by the sensor unit. It is characterized by that.

  According to the illumination device of the first invention described above, the control unit performs the light color control of the three primary color light sources according to the conditions determined by the combination of the light amount, temperature, and humidity measured and acquired by the sensor unit. Therefore, it is possible to provide a lighting device that can change the color of the light color of the light source according to changes in the usage environment such as weather conditions and improve the visibility of the product sample.

  In the illumination device for a vending machine according to the first aspect of the present invention, the control unit includes a storage unit that stores a plurality of predetermined color tone patterns, and the light quantity condition measured by the sensor unit and the measurement are performed. A hue corresponding to a combination of a condition classified by temperature and a condition further classified by the measured humidity is determined based on the tone pattern, and the light colors of three primary light sources are determined. Control to become. For this reason, extremely fine light color control is possible in accordance with the usage environment of the lighting device such as weather conditions, and at this time, it is possible to set the light color in consideration of the product to be illuminated.

  In the illumination device of the vending machine according to the first aspect of the present invention, the sensor unit further includes a proximity sensor that detects the approach of a person, and the control unit may determine the light source for the three primary colors depending on the detection result of the proximity sensor. Change the to white light. Thus, regardless of the previous setting, visibility is enhanced by forcibly setting white light when the approach of a person is detected.

  Further, the vending machine according to the second aspect of the invention is characterized in that at least one set of three primary color light sources that illuminate a product sample, a sensor unit that measures the peripheral light amount, temperature, and humidity of the three primary color light sources, and the sensor unit. And a control unit that performs light color control of the three primary color light sources in accordance with a condition determined according to a combination of light quantity, temperature, and humidity that is acquired.

  According to the vending machine of the second invention, the light color control of the three primary color light sources is performed according to the conditions determined according to the combination of the light amount, temperature, and humidity measured and acquired by the sensor unit. Therefore, it is possible to provide a vending machine that can change the color of the light color of the light source in accordance with changes in the usage environment such as weather conditions and improve the visibility of the product sample.

  In the vending machine according to the second aspect of the present invention, the control unit includes a storage unit that stores a plurality of predetermined tone patterns, and the light amount condition measured by the sensor unit and the measured temperature A hue corresponding to a combination of the classified condition and the condition further classified by the measured humidity is determined based on the color tone pattern, and the light color of the primary color light source becomes the determined hue. Control. For this reason, extremely fine light color control can be performed according to the use environment of the lighting device such as weather conditions, and at this time, the light color can be set in consideration of the product.

  In the vending machine according to the second aspect of the invention, the sensor unit further includes a proximity sensor that detects the approach of a person, and the control unit converts the three primary color light sources into white light depending on a detection result of the proximity sensor. Change the setting to. Thus, regardless of the previous setting, visibility is enhanced by forcibly setting white light when the approach of a person is detected.

The light color control method for the three primary color light sources of the third invention is a light color control method that can be used for both the first invention and the second invention, and each of the light amount, temperature, and humidity around the three primary color light sources. A first step of measuring color, a second step of determining a hue from the measurement result obtained in the first step based on a plurality of predetermined tone patterns, and a hue determined in the second step It is characterized by comprising the third step of controlling the light colors of the three primary color light sources.

  According to the light color control method of the third aspect of the present invention, the hue is determined from the measurement results of the light amount, temperature, and humidity acquired from the sensor unit based on a plurality of predetermined tone patterns, so that the determined hue is obtained. The light colors of the three primary color light sources are controlled. For this reason, the hue of the light color of the light source can be changed according to changes in the usage environment such as weather conditions.

  ADVANTAGE OF THE INVENTION According to this invention, the illuminating device which enabled the change of the light color of the light source corresponding to the change of use environments, such as a weather condition, and aimed at the improvement of the visibility of a product sample, and the light color control method of the light source of this illuminating device Can be provided.

It is a figure which shows the external appearance structure of the vending machine which concerns on the form for implementing this invention. It is a block diagram which shows the internal structure of the electric system of the vending machine which concerns on the form for implementing this invention. It is a block diagram which shows the internal structure of the illuminating device which concerns on the form for implementing this invention. It is a flowchart which shows the light color control operation | movement of the light source of the illuminating device which concerns on the form for implementing this invention. It is the figure which showed an example of the color tone pattern of the illuminating device which concerns on the form for implementing this invention in tabular form.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments for carrying out the present invention (hereinafter, this embodiment) will be described in detail with reference to the accompanying drawings. Note that the same numbers are assigned to the same elements throughout the description of the present embodiment.

(Configuration of vending machine 30)
FIG. 1 is a diagram showing an external structure of a vending machine according to the present embodiment. FIG. 1 illustrates a vending machine 30 that sells products such as canned drinks that are common as vending machines.

  In the main body cabinet (the vending machine main body 1) of the vending machine 30, a plurality of can drinks are stored in a cabinet surrounded by a heat insulating material (not shown). It is displayed in the display room provided. The illumination device 2 is configured so that the three primary color LED arrays 21 (three primary color light sources) are arranged in a row in the horizontal direction corresponding to the product samples, and each product sample is irradiated. In addition, a product selection button 11 is arranged corresponding to each of the product samples, and the can beverage selected by the user pressing the product selection button 11 is placed in the money insertion slot 4 in the vending machine body 1. As soon as the inserted bill or coin is identified, it is selected from the inside of the cabinet and discharged to the discharge port 5.

  Note that a sensor unit 22 including a proximity sensor, an exposure meter, a thermometer, and a hygrometer is attached to the front surface of the vending machine main body 1, and a signal detected here is supplied to the lighting device 2. Note that there are two types of lighting devices 2, one that is already assembled in the display room of the vending machine body 1 at the time of factory shipment and the other that is sold as a single unit and that is later replaced and mounted in the display room. Here, the latter will be exemplified and described.

  FIG. 2 is a block diagram showing the internal configuration of the electrical system of the vending machine according to the present embodiment. As shown in FIG. 2, the vending machine 30 includes a vending machine main body 1 and a lighting device 2. The vending machine main unit 1 uses the main control unit 10 as a control center, and identifies a product selection button 11 on which a product is selected when the user presses, and a bill or a coin inserted into the money slot 4 by the user. It includes a currency identification mechanism 12 and a product selection transport mechanism 13 for transporting the selected product to the discharge port 5.

  The main control unit 10 is constituted by, for example, a microcomputer, takes in a selection instruction for a product selected by a user from a product selection button 11 connected via the input port, and also is connected via an output port. By controlling the identification mechanism 12 and the product selection transport mechanism 13, according to the product selection instruction by pressing the product selection button, one of the products stored in the warehouse is selected, and the selected product is transferred to the product selection transport mechanism. By driving 13, the product is conveyed to the product takeout port 5.

  The illuminating device 2 includes a plurality of primary color LED arrays 21 arranged to illuminate a product sample, and is measured and acquired by the sensor unit 22 according to conditions determined according to a combination of light quantity, temperature, and humidity. The dimming setting of the three primary color LEDs 21 is performed. Details will be described later.

(Configuration of lighting device 2)
FIG. 3 is a block diagram showing an internal configuration of the lighting apparatus according to the present embodiment. According to FIG. 3, the lighting device 2 includes a control unit 20, a three primary color LED array 21, a sensor unit 22, and a power supply unit 23.

  The three-primary-color LED array 21 is an LED in which three LEDs of red (R), green (G), and blue (B) are enclosed in one package. This is a full color LED group having an array structure in which the three primary color LEDs are arranged in a horizontal row.

  The sensor unit 22 includes a thermometer 221, a hygrometer 222, an exposure meter 223, and a proximity sensor 224. For example, the thermometer 221 measures the outside air temperature in a non-contact manner using infrared rays, and the hygrometer 222 uses, for example, a capacitance made of a polymer foil that uses a change in electrical properties due to adsorption / desorption of moisture as a dielectric. This is a humidity sensor of the type. In addition, the hygrometer 222 includes a metal oxide sensor and an electrolyte sensor, any of which may be used.

The exposure meter 223 is, for example, a built-in exposure meter (TTL) used for a camera.
Lens), and the amount of light when the reflected light hits the CCD or CMOS through the photographing lens is measured. In this embodiment, the exposure meter 223 determines whether or not the front front view of the vending machine 30 is better due to weather conditions (clear weather, rain, fog, snow) by comparing the detected light amount with a threshold value. Used to do. That is, when the amount of reflected light is equal to or greater than the threshold, the visibility is poor due to weather such as rain or fog, and when the amount of reflected light is less than the threshold, the visibility is good as in clear weather.

  The proximity sensor 224 is a sensor that detects the approach of a person in a non-contact manner. There are three types: a high-frequency transmission type that uses electromagnetic induction, a magnetic type that uses a magnet, and a capacitance type that uses a change in capacitance. Any of them may be used. In the present embodiment, the proximity sensor 224 forcibly sets the light color of the three primary color LED arrays 21 to “white” when the user (person) is detected, thereby improving the visibility of the product. Used for.

  Note that each of the thermometer 221, the hygrometer 222, and the proximity sensor 224 that constitute the sensor unit 22 needs to be considered so as not to be affected by road surface reflection or rain around the vending machine 30.

  In this embodiment, the power source unit 23 uses a commercial power source 231 (AC 100 V) and electric power generated by solar power generation by the solar panel 232. The electric power supplied from the commercial power source 231 is stepped down by electromagnetic induction in the transformer 233, converted into direct current by the AC-DC converter 234, and stored in the DC storage battery 236. In the present embodiment, an EDLC (Electrical Double-Layer Capacitor) having good compatibility with the solar panel 232 and good charge / discharge efficiency is used as the DC storage battery 236.

  On the other hand, the solar energy generated by the solar panel 232 is stored in the DC storage battery 236 via the backflow prevention circuit 235. The backflow prevention circuit 235 is controlled by the control unit 20, and the power generated by the solar panel 232 is charged to the DC storage battery 236 in fine weather, and the power supplied from the commercial power source is charged to the DC storage battery 236 in rainy or cloudy weather. To control. The LED power supply 237 converts the electric power discharged by the DC storage battery 236 into a voltage of 5 to 12 V necessary for driving the three primary color LED array 21 and supplies the converted voltage to the three primary color LED array 21.

  Note that the power supply unit 23 described above may use a power supply included in the vending machine body 1. This differs depending on the sales form of the lighting device 2. For example, it is preferable to use the power source of the vending machine body 1 when the lighting device 2 is incorporated and sold in the vending machine body 1 and to incorporate the power supply unit 23 described above when selling the lighting device 2 alone.

  The control unit 20 is composed of, for example, a microcomputer, and performs light color control of the three-primary-color LED array 21 according to conditions determined according to a combination of light amount, temperature, and humidity measured and acquired by the sensor unit 22 by program control. Do.

  Specifically, the control unit 20 includes a storage unit 20a that stores a plurality of predetermined tone patterns, a light amount condition measured by the sensor unit 22, a condition classified by the measured temperature, and A hue corresponding to a combination with a condition further classified by the measured humidity is determined based on the color tone pattern, and the light colors of the three primary color light sources are controlled to be the determined hue. The control unit 20 also performs control to change the setting of the three primary color LED arrays 21 to white light when the sensor unit 22 (proximity sensor 224) detects the approach of a person.

(Operation of the lighting device 2)
FIG. 4 is a flowchart showing a light color control operation of the lighting device 2 according to the present embodiment, and FIG. 5 is a diagram showing an example of a color tone pattern of the lighting device 2 according to the present embodiment in a table format. Hereinafter, with reference to FIGS. 4 and 5, the light color control by the illumination device 2 according to the present embodiment shown in FIG. 3 will be described in detail.

  In the flowchart of FIG. 4, each of the thermometer 221, the hygrometer 222, the exposure meter 223, and the proximity sensor 224 constituting the sensor unit 22 constantly measures and monitors environmental information such as weather conditions in front of the vending machine body 1. ing.

  First, the proximity sensor 224 of the sensor unit 22 detects the approach of the user. The proximity sensor 224 is OFF unless the user approaches the vending machine body 1. When the proximity sensor 224 is OFF (step S401 “Yes”), that is, when the user is not located in the vicinity of the vending machine body 1, the control unit 20 measures the peripheral light amount and the thermometer 221 measured by the exposure meter 223. The temperature data measured by and the humidity data measured by the hygrometer 222 are acquired (step S402).

  Next, the control unit 20 compares and determines the input light amount measured and acquired by the exposure meter 223 and a predetermined light amount threshold (step S403). Here, if the input light amount is equal to or greater than the light amount threshold value (step S403 “Yes”), the control unit 20 determines that there is poor visibility, and the light color conforms to the visual failure patterns # 1 to # 4 shown in a table form in FIG. Take control. That is, the light color control is performed so as to include more yellowish hues than the reference pattern when the visibility is good. This is because the yellow color has a property that light can reach farther than the white color.

  Specifically, the control unit 20 first refers to the temperature data measured and acquired by the thermometer 223 (step S404). Here, when it is determined that the temperature data belongs to the category of “normal temperature” in the range of, for example, 15 to 25 ° C. (step S404 “normal temperature”), the control unit 20 is further measured by the hygrometer 222. Reference is made to the acquired humidity data (step S405).

  Here, for example, when it is determined that the humidity data belongs to the category of “normal humidity” in the range of 40 to 60% (step S405 “normal humidity”), the control unit 20 performs light of the three primary color LED arrays 21. The color is set to “orange” (step S410), and the product sample is illuminated with “orange” by controlling the light emission of the three primary color LED array 21 (step S422).

  Further, when it is determined that the humidity data belongs to the category of “humidity” of, for example, 60% or more (step S405 “humidity”), the control unit 20 changes the light color of the three primary color LED array 21 to “yellow”. The product sample is illuminated with “yellow” by setting (step S411) and performing light emission control of the three primary color LED arrays 21 (step S422). Further, when it is determined that the humidity data belongs to the category of “low humidity” of 40% or less (step S405 “low humidity”), the control unit 20 changes the light color of the three primary color LED array 21 to “orange”. The product sample is illuminated with “orange” by performing the light emission control of the three primary color LED arrays 21 (step S422).

  On the other hand, when it is determined in the temperature determination process in step S404 that the temperature data belongs to the category of “high temperature”, for example, 25 ° C. or higher (step S404 “high temperature”), the control unit 20 further includes the hygrometer 222. Reference is made to the humidity data measured and acquired by (step S406).

  Here, for example, when it is determined that the humidity data belongs to the category of “normal humidity” in the range of 40 to 60% (step S406 “normal humidity”), the control unit 20 determines that the three primary color LED arrays 21 The light color is set to “blue” (step S413), and the product sample is illuminated with “blue” by controlling the light emission of the three primary color LED arrays 21 (step S422).

  In addition, when it is determined that the humidity data belongs to the category of “humidity” of, for example, 60% or more (step S406 “humidity”), the control unit 20 changes the light color of the three primary color LED array 21 to “yellow”. The product sample is illuminated with “yellow” by setting (step S414) and performing light emission control of the three primary color LED arrays 21 (step S422). Further, when it is determined that the humidity data belongs to, for example, a “low humidity” classification of 40% or less (step S406 “low humidity”), the control unit 20 changes the light color of the three primary color LED array 21 to “blue”. The product sample is illuminated with “blue” by performing the light emission control of the three primary color LED arrays 21 (step S422).

  Further, in the temperature determination process in step S404, for example, when it is determined that the temperature data is in the range of 0 to 150 ° C. and belongs to the “low temperature” classification that does not belong to the ice temperature classification (step S404 “low temperature” “, Step S407“ No ”), the control unit 20 further refers to the humidity data measured and acquired by the hygrometer 222 (Step S408).

  Here, for example, when it is determined that the humidity data belongs to the category of “normal humidity” in the range of 40 to 60% (step S408 “normal humidity”), the control unit 20 determines that the three primary color LED arrays 21 The light color is set to “orange” (step S416), and the product sample is illuminated with “orange” by controlling the light emission of the three primary color LED array 21 (step S422).

  Further, when it is determined that the humidity data belongs to the category of “humidity” of, for example, 60% or more (step S408 “humidity”), the control unit 20 changes the light color of the three primary color LED array 21 to “yellow”. The product sample is illuminated with “yellow” by setting (step S417) and controlling the light colors of the three primary color LED arrays 21 (step S422). Further, when it is determined that the humidity data belongs to the category of “low humidity” of 40% or less (step S408 “low humidity”), the control unit 20 changes the light color of the three primary color LED array 21 to “yellow”. The product sample is illuminated with “yellow” by setting (step S415) and performing light emission control of the three primary color LED arrays 21 (step S422).

  When the temperature data is determined to belong to the category of “ice temperature” of 0 ° C. or less in the ice temperature determination process in step S407 (step S407 “ice temperature”), the control unit 20 further The humidity data measured and acquired by the hygrometer 222 is referred to (step S409).

  Here, for example, when it is determined that the humidity data belongs to the category of “normal humidity” in the range of 40 to 60% (step S409 “normal humidity”), the control unit 20 sets the three primary color LED arrays 21. The light color is set to “orange” (step S419), and the product sample is illuminated with “orange” by controlling the light emission of the three primary color LED array 21 (step S422).

  Further, when it is determined that the humidity data belongs to the category of “humidity” of, for example, 60% or more (step S409 “humidity”), the control unit 20 sets the light color of the three primary color LED array 21 to “yellowish green”. (Step S420), the product sample is illuminated with “yellowish green” by performing light emission control of the three primary color LED arrays 21 (Step S422). Furthermore, when it is determined that the humidity data belongs to the category of “low humidity” of 40% or less (step S409 “low humidity”), the control unit 20 changes the light color of the three primary color LED array 21 to “yellow”. The product sample is illuminated with “yellow” by setting (step S421) and performing light emission control of the three primary color LED arrays 21 (step S422).

  On the other hand, when it is determined in step S403 that the input light amount is less than the threshold value (step S403 “No”), the control unit 20 determines that the field of view is good, and the field of view shown in a table form in FIG. The light color control according to the good patterns # 1 to # 4 is performed. That is, the light color is controlled to a hue containing a lot of white. However, it is also possible to control the light color to a warm hue by bringing it closer to the color of the light bulb (yellow) when the temperature is cold.

  Specifically, the control unit 20 refers to the temperature data measured and acquired by the thermometer 221 (step S423). Here, when it is determined that the temperature data belongs to the category of “normal temperature” in the range of, for example, 15 to 25 ° C. (step S423 “normal temperature”), the control unit 20 is further measured by the hygrometer 222. The acquired humidity data is referred to (step S424).

  Here, for example, when it is determined that the humidity data belongs to the category of “normal humidity” in the range of 40 to 60% (step S424 “normal humidity”), the control unit 20 determines that the three primary color LED arrays 21 The light color is set to “white” (step S429), and the product sample is illuminated with “white” by controlling the light emission of the three primary color LED arrays 21 (step S422).

  Further, when it is determined that the humidity data belongs to the category of “humidity” of, for example, 60% or more (step S424 “humidity”), the control unit 20 changes the light color of the three primary color LED array 21 to “white”. The product sample is illuminated with “white” by setting (step S430) and performing light emission control of the three primary color LED arrays 21 (step S422). Furthermore, when it is determined that the humidity data belongs to the category of “low humidity” of, for example, 40% or more (step S424 “low humidity”), the control unit 20 changes the light color of the three primary color LED array 21 to “white”. The product sample is illuminated with “white” by setting (step S431) and performing light emission control of the three primary color LED arrays 21 (step S422).

  On the other hand, when it is determined in the temperature determination process in step S423 that the temperature data belongs to the category of “high temperature” of, for example, 25 ° C. or higher (step S423 “high temperature”), the control unit 20 further includes the hygrometer 222. Reference is made to the humidity data measured and acquired by (step S425).

  Here, for example, when it is determined that the humidity data belongs to the category of “normal humidity” in the range of 40 to 60% (step S425 “normal humidity”), the control unit 20 sets the three primary color LED arrays 21. The light color is set to “blue white” (step S432), and the light emission of the three primary color LED array 21 is controlled to illuminate the product sample with “blue white” (step S422). Further, when it is determined that the humidity data belongs to the category of “humidity” of, for example, 60% or more (step S425 “humidity”), the control unit 20 sets the light color of the three primary color LED array 21 to “blue white”. (Step S433), the light emission control of the three primary color LED array 21 is performed to illuminate the product sample with “blue white” (Step S422).

  Furthermore, when it is determined that the humidity data belongs to the category of “low humidity” of 40% or less (step S425 “low humidity”), the control unit 20 changes the light color of the three primary color LED array 21 to “blue white”. (Step S434), the light color of the three primary color LED array 21 is controlled to illuminate the product sample with “blue white” (Step S422).

  Further, when it is determined in the temperature determination process in step S423 that the temperature data is in the range of 0 to 150 ° C. and belongs to the “low temperature” classification that does not belong to the ice temperature classification (step S423 “low temperature”). ", Step S426" No "), the control unit 20 further refers to the humidity data measured and acquired by the hygrometer 222 (step S427).

  Here, for example, when it is determined that the humidity data belongs to the category of “normal humidity” in the range of 40 to 60% (step S427 “normal humidity”), the control unit 20 determines that the three primary color LED array 21 The light color is set to “orange white” (step S416), and the product sample is illuminated with “orange white” by controlling the light emission of the three primary color LED arrays 21 (step S422).

  Further, when it is determined that the humidity data belongs to the category of “humidity” of, for example, 60% or more (step S427 “humidity”), the control unit 20 changes the light color of the three primary color LED arrays 21 to “orange white”. (Step S436), the product color is illuminated with “orange white” by controlling the light color of the three primary color LED array 21 (Step S422). Further, when it is determined that the humidity data belongs to the category of “low humidity” of 40% or less (step S427 “low humidity”), the control unit 20 changes the light color of the three primary color LED arrays 21 to “orange white”. (Step S437), the product sample is illuminated with “orange white” by controlling the light emission of the three primary color LED arrays 21 (step S422).

  When the temperature data is determined to belong to the category of “ice temperature” of 0 ° C. or less in the ice temperature determination process in step S426 (step S426 “ice temperature”), the control unit 20 further The humidity data measured and acquired by the hygrometer 222 is referred to (step S428).

  Here, for example, when it is determined that the humidity data belongs to the category of “normal humidity” in the range of 40 to 60% (step S428 “normal humidity”), the control unit 20 sets the three primary color LED arrays 21. The light color is set to “yellowish white” (step S438), and the product sample is illuminated with “yellowish white” by controlling the light emission of the three primary color LED array 21 (step S422).

  Further, when it is determined that the humidity data belongs to the category of “humidity” of, for example, 60% or more (step S428 “humidity”), the control unit 20 sets the light color of the three primary color LED arrays 21 to “yellowish white”. (Step S439), the light emission control of the three primary color LED array 21 is performed to illuminate the product sample with “yellowish white” (Step S422). Furthermore, the humidity data is, for example, “low humidity” of 40% or less. When it is determined that the light source belongs to the category (step S428 “low humidity”), the control unit 20 sets the light color of the three primary color LED array 21 to “yellowish white” (step S440), and the light emission of the three primary color LED array 21 By performing the control, the product sample is illuminated with “yellowish white” (step S422).

  When the proximity sensor 224 is ON in the human approach determination process in step S401 (step S401 “No”), the control unit 20 sets the light color of the three primary color LED array 21 to “white” (step S441). By performing light color control of the three primary color LED arrays 21, the product sample is illuminated with "white" (step S422). In other words, even if the light color control has been performed to any color by the previous dimming control, when the approach of the user is detected, it is forcibly changed to “white” to improve the visibility of the product sample. I can do it.

  As described above, according to the illuminating device 2 according to the present embodiment, the control unit 20 includes a storage unit that stores a plurality of predetermined color tone patterns, and measures and measures the amount of light measured by the sensor unit 22. Hues corresponding to combinations of conditions classified by temperature (for example, normal temperature, high temperature, low temperature) and conditions further classified by measured humidity (for example, normal humidity, high humidity, low humidity), Determine based on the tone pattern, and control the light colors of the three primary color light sources to be the determined shade

  According to this embodiment, it is possible to change the light color of the light source corresponding to the change in the usage environment of the vending machine 30 according to the weather conditions, and the visibility of the product sample can be improved. Specifically, by adjusting the color tone of the illumination according to the weather, it becomes easier to see the product sample from a farther place than in the past even when it is raining, snowing, or fogging. The lighting of the vending machine 30 also plays a role as a street light in a residential area and contributes to crime prevention. However, according to the lighting device 2 of the present embodiment, during bad weather such as rain and fog, It can be expected to be effective as a street light by dimming light of a wavelength that is difficult to diffusely reflect yellow. Depending on the wavelength, it is also possible to prevent insects from approaching in the summer. Furthermore, it contributes to the sales promotion of the vending machine 30 by controlling the light color to a cool color with a wavelength close to white to blue on a hot day by using a warm color with a reddish color on a cold day. It is also possible.

  In the present embodiment, the three primary color LED array 21 is used as the three primary color light source. However, an organic EL (Organic Light Emitting Diode) that uses the same electroluminescence effect as the LED as a light emission principle can be substituted. Is possible.

  In the present embodiment, the measured temperature is classified into four categories of “normal temperature”, “high temperature”, “low temperature”, and “ice temperature”, and the measured humidity is “normal humidity”, “ The ranges are defined as “high humidity” and “low humidity”, and each range is defined. However, the number and range to be classified are both arbitrary.

  Further, for example, as shown in a table form in FIG. 5, based on the combination of exposure data, temperature data, and humidity data, a total of 8 visual good patterns # 1 to # 4 and visual defective patterns # 1 to # 4 are combined. Although the combination of shades by dimming of the total 24 colors of patterns (+ forced white by proximity sensor ON) has been described, the types of shades are infinite and are not limited to this pattern and are arbitrary.

  Moreover, in this embodiment, although illustrated only when the illuminating device 2 was applied to the vending machine 30, the application to not only the vending machine 30 but the lighting of the show window in a restaurant etc. is also considered.

  In the present embodiment, all of the functions of the control unit 20 may be realized by software, or at least a part thereof may be realized by hardware. For example, the data processing in which the control unit 20 sets the light colors of the three primary color light sources according to the conditions determined according to the combination of the light amount, temperature, and humidity measured and acquired by the sensor unit 22 is one or more programs. May be realized on a computer, or at least a part may be realized by hardware.

  As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above-described embodiments. Further, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 Vending machine main body 2 Illumination device 3 Product sample 20 Control part 21 3 primary color LED array (3 primary color light source)
22 Sensor Unit 23 Power Supply Unit 30 Vending Machine 221 Thermometer 222 Hygrometer 223 Exposure Meter 224 Proximity Sensor

Claims (7)

At least one set of three primary color light sources for illuminating product samples in vending machines;
A sensor unit for measuring each of the peripheral light amount, temperature, and humidity of the three primary color light sources;
A control unit that performs light color control of the three primary color light sources according to a condition determined according to a combination of light amount, temperature, and humidity, which is measured and acquired by the sensor unit;
An illumination device for a vending machine, comprising: The controller is
Including a storage unit for storing a plurality of predetermined tone patterns;
Based on the color tone pattern, a hue corresponding to a combination of a light amount condition measured by the sensor unit, a condition classified by the measured temperature, and a condition further classified by the measured humidity Decide
The lighting device for a vending machine according to claim 1, wherein the light colors of three primary color light sources are controlled so as to have the determined hue. The sensor unit is
In addition, it includes a proximity sensor that detects the approach of a person,
The controller is
The lighting device for a vending machine according to claim 1 or 2, wherein the three primary color light sources are changed to white light depending on a detection result of the proximity sensor. At least one set of three primary color light sources for illuminating a product sample;
A sensor unit for measuring each of the peripheral light amount, temperature, and humidity of the three primary color light sources;
A control unit that performs light color control of the three primary color light sources according to a condition determined according to a combination of light amount, temperature, and humidity, which is measured and acquired by the sensor unit;
Vending machine characterized by comprising The controller is
Including a storage unit for storing a plurality of predetermined tone patterns;
Based on the color tone pattern, a hue corresponding to a combination of a light amount condition measured by the sensor unit, a condition classified by the measured temperature, and a condition further classified by the measured humidity Decide
5. The vending machine according to claim 4, wherein the light colors of three primary color light sources are controlled so as to have the determined hue. The sensor unit is
In addition, it includes a proximity sensor that detects the approach of a person,
The controller is
6. The vending machine according to claim 4, wherein the three primary color light sources are changed to white depending on a detection result of the proximity sensor. A first step of measuring each of the amount of light, temperature, and humidity around the three primary color light sources;
A second step of determining a hue from the measurement result acquired in the first step based on a plurality of predetermined tone patterns;
3. A light color control method for a three-primary-color light source, comprising a third step of controlling the light colors of the three-primary-color light sources so as to achieve a hue determined in the second step.

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