RU179117U1 - DEVICE FOR MEASURING THE BRIGHTNESS OF SURFACES OF FOOD PRODUCTS, MATERIALS AND PRODUCTS - Google Patents

Abstract

The utility model relates to devices for measuring the brightness of the surfaces of food products, materials, products, light sources and monitor screens. The technical task of the utility model is to increase the efficiency of working with the display of the measurements in text-digital format on the display. The technical task is performed by that a device for measuring the brightness of the surfaces of food products, materials and products containing a housing, a power button, a power indicator, a lighting head, and a lighting reception the unit is characterized in that the case is made of plastic, the programmable microcontroller is rigidly fixed in the upper part, connected via a cable to the lighting-receiving unit, which sequentially turns on / off the white, red, blue and green LEDs that illuminate the test surface, and the reflected light it is detected by a light-sensitive sensor, converts in proportion to the magnitude of the light intensity into electric current and transmits, through the cable for analysis, to a programmable microcontroller, after processing ki transmitting data to the monitor in text-digital format, as a result of measuring the brightness of surfaces.

Description

The utility model relates to devices for measuring the brightness of the surfaces of food products, materials, products, light sources and monitor screens.

Known Visual photometer of low brightness VFM-57 (Visual photometer of low brightness VFM-57) [1], designed to visually compare the brightness of two photometric fields, one of which is measured, the other is the comparison field used for the prototype utility model, which consists of housing, power supply, lighting and receiving unit and measuring head. The disadvantage of which is cumbersome, biased measurements and the need to connect to an AC 220 V.

The technical task of the utility model is to increase the efficiency of working with the display of the measurements in text-digital format on the display.

The technical task is carried out due to the fact that the device for measuring the brightness of the surfaces of food products, materials and products contains a housing, a power button, a power indicator, a lighting head, and a lighting-receiving unit is characterized in that the housing is made of plastic, is rigidly fixed in the upper part programmable microcontroller, connections through a cable with the lighting-receiving unit, which sequentially turns on / off the white, red, blue and green LEDs that illuminate the the blown surface, and the reflected light is captured by a photosensitive sensor, converts proportionally to the amount of light intensity into electric current and transmits, through the cable for analysis, to a programmable microcontroller, after processing, transmits data to the monitor in text-digital format as a result of measuring the brightness of the surfaces.

The proposed device for measuring the brightness of the surfaces of food products, materials and products is illustrated in Fig., Which shows: pos. 1 - power supply; pos. 2 - case; pos. 3 - monitor; pos. 4-cable; pos. 5 - nest; pos. 6 - lighting unit; pos.7 - wire; pos. 8 - power indicator; pos. 9 - button; pos. 10 - USB cable; pos. 11-programmable microcontroller.

A device for measuring the brightness of the surfaces of food products, materials and products contains a housing (2) (as an option, made of impact-resistant plastic), a programmable microcontroller (11) and a socket (5) are rigidly fixed inside, and a monitor (3) is installed on the outside. The power supply unit (1) and the lighting-receiving unit (6) are fixed together and can be disconnected from the housing and connected to it via a cable (4) and a wire (7) on the outside, a button (9) and a power indicator (8) are fixed. Power supply (1) (as an option, four AA alkaline batteries of 1.5 V each). Socket (5) (as an option, for mini-USB cable). The monitor (3) (as an option, the MT-16S2H digital liquid crystal display alphanumeric 16 characters 2 lines) is rigidly fixed to the programmable microcontroller (11). Software microcontroller (11) (as an option, programmable "Arduino Uno ATmega328"). Cable (4) (as an option, 8-core) for turning LEDs on and off and transmitting a signal from the photosensitive unit to a programmable microcontroller (11). Wire (7) (as an option, 2-core copper wire 0.1 mm2 in insulation). Power indicator (8) (as an option, green LED). Button (9) to turn on / off the photometer. USB cable (10) (as an option, mini-USB on one side and standard USB on the other for connecting to a computer). The lighting-receiving unit (6) (as an option, consists of 4 LEDs in white, red, blue, green and a photosensitive sensor) is fixed inside the housing (2).

A device for measuring the brightness of the surfaces of food products, materials and products works as follows: turn on the power supply (1) with the button (9), the power indicator (8) lights up in green. The supply voltage is supplied via wire (7) to the programmable microcontroller (11), to the monitor (3) and to the lighting-receiving unit (6). The programmable microcontroller (11) operates according to the algorithm of the program previously downloaded via a USB cable (10) from the computer. On the monitor (3), programmed by the microcontroller (1.1), “GOTOV” is displayed, ready for operation. The lighting-receiving unit (6) is applied to the surface of the studied object (food product, materials, products), the brightness of the surface of which is measured, or directed to the object (workplace), the illumination of which must be measured. The programmable microcontroller (11) sequentially through the cable (4) turns on and off the white, red, blue and green LEDs located in the lighting-receiving unit (6). The light reflected from the surface under investigation is captured by a photosensitive sensor located in the light-receiving unit (6), where it is converted into a current proportional in strength, which is transmitted via cable (4) to the programmable microcontroller (11), where it is digitized and transmitted to the monitor according to a given algorithm (3) in alphanumeric format. On the monitor (3), the number and name of the color of the LED on are displayed in two lines successively the digital value of the brightness received by the photosensitive sensor for a given color is the result of measuring the equivalent surface brightness (illumination of the workplace), as well as the total brightness value in four colors.

An experiment on the basis of the Volsk Institute of Material Support (Volsk) in August 2017 showed the effectiveness of using a technical solution, the device is convenient to use, mobile, practical and allows you to measure the brightness of the surfaces of food products, materials and products with high accuracy.

The proposed device provides efficiency with the display of the measurements in text-digital format on the display, with its small dimensions. It can be used in determining the quality of food in the canteens and in the warehouses of military units.

Literature:

1. Photometer VFM-57 [Electronic resource] http://standart-m.com.ua/izmeritelnye-pribory/lyuksmetry/fotometr-vfm-57.

Claims (1)

A device for measuring the brightness of the surfaces of food products, materials and products, comprising a housing, a power button, a power indicator, a lighting head and a lighting-receiving unit, characterized in that it is equipped with a monitor, a programmable microcontroller, rigidly fixed in the upper part of the housing and connected via a cable with a lighting-receiving unit, configured to sequentially turn on / off the white, red, blue, and green LEDs illuminated on the studied surface b, by a light-sensitive sensor capable of capturing reflected light, converting it proportionally to the amount of light intensity into electric current and transmitting it through a cable for analysis to a programmable microcontroller after processing, transmitting data to the monitor in text-digital format as a result of measuring the brightness of the surfaces, while made of plastic.

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