Device for determining the position of the louvered screen

 

(57) Abstract:

Usage: agriculture, crop production and construction of protective soil. The inventive device for determining the position of the louvered screen contains the light sensor with photosensitive node and amplifying element of the output set based on the hemispherical diffuser and razmeshannye in the diffuser microhouse connected to the sensors of their situation that are associated with software controller and analog-to-digital Converter. Microhouse connected in sections combined in pairs, and the photosensitive unit is designed in the form of three photocells, optical zone of sensitivity which are located respectively in the spectral ranges of 400 - 500, 55 - 600 600 - 700 nm, with corresponding microhouse different sections of each pair are opposite each other on opposite sides of the axis of symmetry of the lens, and microhouse each pair of sections is made from a material with a given value of the coefficient of transmission of the incident optical flow, respectively, in the spectral ranges of 400 to 500, 500 to 600 and 600 to 700 nm. The use of the invention allows to adjust the spectral socialize cultures. 1 C. p. F.-ly, 8 ill.

The invention relates to agriculture, namely, to control the parameters of the microclimate in the greenhouse.

A device for determining the position of the louvered screen containing the light sensor comprising a photosensitive node with the amplifying element of the output set based on the hemispherical diffuser, and placed under the arch of the last microhouse connected through a linkage group to the outputs of the actuators and sensors of their situation that are associated with the program controller, and the output of the amplifier element is connected with the latter through an analog-to-digital Converter.

However, the impact of such a device to regulate the climate in the greenhouse is not enough, since it increases only natural illumination.

The purpose of the invention the expansion of the scope of the device by providing a control louvered screens in greenhouses with artificial additional light plants.

This is achieved in that the device for determining the position of the louvered screen containing the light sensor comprising a photosensitive node with amplifying element in which alusi, United through a linkage group to the outputs of the actuators and sensors of their situation that are associated with the program controller, and the output of the amplifier element is connected with the latter through an analog-to-digital Converter according to the invention, microhouse through group rods are connected in sections combined in pairs, and the photosensitive unit is designed in the form of a photocell, the sensitivity zone which is located in the spectral range 400-700 nm, with corresponding microhouse different sections of each pair are opposite each other on opposite sides of the vertical plane of symmetry of the hemispherical diffuser, moreover, microhouse each pair of sections is made from a material with a specified value of the transmittance of the incident optical flux in adjacent spectral regions in the range of 400-500 nm.

In a preferred embodiment of the device of microhouse grouped into three pairs of sections, and microhouse first couple of sections are made from a material with a given value of the transmittance of the optical flow in the spectral range 400 to 500 nm, the second pair of sections in the region of 500-600 nm, and the third pair of sections in the range 600-700 nm.

Device for determining the position of the louvered screen placed in the greenhouse 1 under the pitched glazed roof 2. Greenhouse 1 is equipped with a multi-tiered narrowshelving hydroponic plants (MUGU), on sloping racks 3 which have germinator-trays 4 for growing plants 5. Greenhouse 1 is equipped with a source of optical radiation 6, placed outside the frames of the installation, and sources of optical radiation 7, placed inside the frames. As sources of optical radiation 6 and 7 can be used mercury discharge lamps. The device includes a light sensor 9 includes a photosensitive node with the amplifying element at the output. The ambient light sensor 9 is installed on the base of the hemispherical russei the tool group rods 12 to the outputs of the actuators 13 and reed sensors 14 of their position, controlling the angle or the length of the linkage group 12. The sensors 14 are associated with the software controller 15, the output of which is connected to the analog-digital Converter 16.

Microhouse 11, 11' and 11" by a group of tie rods 12 are connected in sections, grouped into three pairs, with relevant microhouse different sections of each pair are opposite each other on opposite sides of the vertical plane of symmetry of the hemispherical diffuser 10. The photosensitive unit is designed in the form of three photocells, optical zone of sensitivity which are located in the spectral ranges of 400-500, 500-600 and 600-700 nm, respectively. Relevant microhouse 11, 11' and 11" of the various sections of each pair are opposite each other on opposite sides of the vertical plane of symmetry of the hemispherical lens 10, for example, microhouse 11 of the first couple of sections are made from a material with a given value of the transmittance of the optical flow in the spectral range 400 to 500 nm, the second pair of sections 11' in the region of 500-600 nm, and the third pair of sections 11 in the range of 600-700 nm while the "total" areas are located in the spectral range 400-700 nm without overlapping each other.

Analog-digits is ller 15 is designed to handle the indications of integrated natural light and its spectral components in the range of 400-500 nm, 500-600 nm, 600-700 nm, remember the code of the position sensors 14 microhouse 11, 11' and 11", memorization integral and differential components of natural radiation from the natural light source, transfer them to the communication device 17 from the device, then the controller combined spectral composition 18 to translate the louvers 19, 19' and 19", installed under roofing fence greenhouse 1 (see Fig. 2) by means of the actuator 20 and the group of rods 21 in the position providing the maximum transmittance of natural light for one revolution of a given spectral composition of light, and also command on the change of the electric power gas-discharge periods of the radiation source 6 by means of sensors 22, a group of rods 21 and the control Cabinet 23.

Four-electrode gas discharge tube 6 (see Fig. 3) contains the electrodes 24, the electrical leads 25, the plasma blue light 26 plasma green light 27, the plasma "red" light 28. As a light source can be used lamp type DM-6000, DM-3000 and TM-750. Sources of optical radiation 7 can operate in an immutable constant voltage and spectral composition of light.

Oncopathology louvered screen (see Fig. 4 and 5) consists of a rod 21, swasana shutters 19, 19' and 19".

The sensors 22 measuring the spectral composition of artificial light (see Fig. 6) arranged in the sensor unit with the power supply 27.

The solar cell includes sensors measuring the spectral composition (see Fig. 7, 8). The sensor has a housing 28 mounted on the bearing 29 of the base, the amplifier 9 with the terminals 30 serving to output an electrical signal corresponding to the level and spectral composition of natural light. On the basis of amplifier 9 are mounted photodiode 31 positioned below the rotating photometric drum 32 having integral 33 and uskoreniye 34, 35 and 36 channels, as well as microbrewed 37 sensor associated with the position sensor 14.

Device for determining the position of the louvered screen greenhouses work by the following algorithm.

When determining the position of microhouse 11, 11' and 11", providing maximum natural light in the greenhouse, at the beginning of the regulatory process is determined by the sensors 14 provisions microhouse 11, 11' and 11", then the programmable controller 15 sends a signal to the actuator 13, which move microhouse 11, 11' and 11" from the previous position in accordance with the position sensors 14. Providing Maxi is Craiului stop. In the light sensor 8 through microbrewed 37 integral filter 33 is placed in front of the radiation receiver photodiode 31 in accordance with the position sensors 14.

When determining the spectral components of natural lighting to create the optimum combined light greenhouses analog-to-digital Converter 16 sends a signal to alternately transfer photometric drum 32 in position 34, 35, 36, enabling installation in front of the light receiver 31 and the measurement of spectral components of the integral radiation in the areas of 400-500 nm, 500-600 nm, 600-700 nm.

The maximum value of the integrated natural light with the channel 33 of the sensor 8, the spectral components of the natural light in the range of 400-500 nm, 500-600 nm, 600-700 nm, corresponding codes of the position of the sensors 14 and 14' are written in the programmable controller 15, and then produces a command to transfer microhouse 11, 11' and 11" in the position that provides maximum illumination and transmitting spectral components of natural light in the range of 400-500 nm, 500-600 nm and 600-700 nm in the regulator combined spectral composition 18. With the programmable controller 15 through the entangled command to rotate the louvers 19, 19' and 19" of the greenhouse by means of the actuator 20 with tie rods 21 in a location that provides maximum light transmission for one turn.

At the same time the regulator combined spectral structure 18 by means of sensors 22 artificial component of the combined light in the range of 400-500, 500-600, 600-700 nm, and control Cabinet 23 sends the command to the lamp 6 in the greenhouse on the change in the spectral composition of the discharge gaps that are responsible for the spectral range 400-500, 500-600 and 600-700 nm and the provision of standardized combined oblojennosti.

When searching the provisions of microhouse 11, 11' and 11", which provides the missing spectral components in the areas of 400-500, 500-600 and 600-700 nm in the combined light in the greenhouse, the programmable controller 15 sends a signal to the actuator 13, which in turn move the shutters 11, 11' and 11" from the position providing the maximum transmittance in the position of providing a given spectral composition in accordance with the readings of the sensors natural spectral composition 34, 35, 36 and sensors artificial spectral composition 22 provisions louvered screens 19, 19' and 19".

The use of the device for determining the position of W gives the opportunity along with the maximum size of natural light in the greenhouse for one rotation of the screen to adjust the spectral composition of natural and artificial components of the joint light, that increases the yield grown in greenhouses crops.

1. DEVICE FOR determining the POSITION of the LOUVERED SCREEN containing the light sensor comprising a photosensitive node with the amplifying element of the output set based on the hemispherical diffuser, and placed under the arch of the last microhouse connected through a linkage group to the outputs of the actuators and sensors of their situation that are associated with the program controller, and the output of the amplifier element is connected with the latter through an analog-to-digital Converter, characterized in that microhouse through group rods are connected in sections combined in pairs, and the photosensitive unit is designed in the form of a photocell, area of the optical sensitivity of which is located in the spectral range 400 - 700 nm, and the corresponding louvers various sections of each pair are opposite each other on opposite sides of the vertical plane of symmetry of the hemispherical lens, and microhouse each pair of sections is made from a material with a specified value of the transmittance of the incident optical flux in adjacent spectral regions in the range of 400 - is Craiului first couple of sections are made from a material with a given value of the transmittance of the optical flow in the spectral range 400 - 500 nm, the second pair of sections in the region of 500 - 600 nm, and the third pair of sections is in the range of 600 to 700 nm.

 

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