Device of automatic control of mist-generating plant

FIELD: agriculture.

SUBSTANCE: device of automatic control of mist-generating plant relates to gardening, namely to vegetative propagation of horticultural crops by the method of herbaceous cuttings. The device comprises operating mode switches on the number of units of mist-generating plant, a commutation switch to connect the power source to the units of mist-generating plant and cyclical timing relay that determines the duration of the presence or absence of each unit power. The cyclical timing relay consists of a microcontroller, a real-time clock, a memory module, two encoders, control buttons and an alphanumeric LCD display.

EFFECT: device of automatic control of mist-generating plant provides optimisation of watering mode by an independent set of time of watering and the time of pause separately for several intervals within the day, such as morning, day, evening and night.

1 dwg

 

The invention relates to the automation of horticulture, namely the vegetative propagation of horticultural crops by the method of green grafting.

Technology green grafting acquires industrial base through the creation and improvement of industrial plants artificial mist, carrying out a fine spray of water to a fine mist. When romanobritish it is necessary to observe a certain correlation between time of spraying water and intervals between raspille to the leaves of the cuttings were constantly covered with a film of water and at the same time was not wet the substrate in order to avoid rotting of roots. Therefore, the device control fogging equipment must provide intermittent (cyclic) mode of its operation. Time of spray water required for the formation of a water film on the leaves, unit is seconds, and the interval between irrigations - units and tens of minutes and are determined by the drying time of the water film, which depends on environmental factors (temperature, lighting, etc), and morphological features of the leaf cherecwich horticultural crops [1]. The applied control bracket type cap W [1] to control the inclusion of a misting unit consists of a mechanical device to group the contacts, switched Cams located around the circumference of the shaft driven in rotation by an electric motor with a reducer. The disadvantage of this device is a great time of installation of the Cams when the time changes watering, the inability to separately install time watering and pause between watering. More advanced electronic controllers irrigation ADF-3 and ADF-15 [1], free from the limitations of the controller cap U. However, in these devices when managing multiple fogging units (3 to 15) there are situations where some fogging installations are included simultaneously, which reduces the pressure in the water line and, consequently, deterioration of the quality of dispersion and reduction of the installed irrigation norms. In addition, these devices do not allow you to automatically switch to another mode of irrigation in a given time (under watering regime is a set of parameters "application" and "pause between watering"), while regime change is necessary because the temperature in the morning and evening is usually less than a day, and at night, in addition to lowering the temperature decreases, and illumination. In devices of the ADF-3 and ADF-15 regime change does the operator manually, i.e. require his constant presence. Device controls described in the catalogues of various companies (GARDENA Germany, HUNTER-USA etc), enable irrigation in a given time, but as they are designed for watering gardens, fields, landscapes, etc. that do not provide pulse irrigation is required for green grafting. The closest analogue of the invention is a device for automatic control block fogging installation for green grafting [2]containing switches the operation mode of the device number of blocks fogging installation, the switch to connect the power source to the blocks fogging installation through switches the operation mode of the device, as well as cyclic timer that determines the duration of the presence and absence of food each block fogging installation. The disadvantage of this technical solution is that the length of the pause between irrigations can not be set individually for each block fogging installation, as it is equal to the difference between the cycle time and the time of irrigation, and the cycle time for all units equally. In addition, this device does not automatically change the mode of irrigation in accordance with the predicted changes in temperature and light during the day.

The technical result of the invention is providing the most favorable water regime green h is renkow horticultural crops at the expense of the independent installation of watering time and pause time in predetermined short intervals of real astronomical time during the day and as a consequence, the increase in the percentage of yield of seedlings from green cuttings.

The technical result of the invention is achieved in that in the automatic control device fogging installation containing switches the operation mode of the device number of blocks fogging installation, the switch to connect the power source to the blocks fogging installation through switches the operation mode of the device, as well as cyclic timer that determines the duration of the presence and absence of food each block fogging installation, the latter consists of a microcontroller, a first input connected to the output of the real-time clock, a second input connected to the memory module, and a third input connected to the output of the first encoder, the input of which is connected with the control buttons, the first output the microcontroller is connected to the liquid crystal alphanumeric display (LCD), and the following outputs by the number of blocks fogging installation connected to respective inputs of the second encoder, which outputs the number of blocks fogging installation connected to respective control inputs of the switch power supply. The microcontroller provides the issuance of control signals individually for each block fogging the stop when reaching the current time, counting a real time clock and set watering start times. The parameters of watering (watering duration", "pause time") and the start time are set by the control buttons in programming mode and is stored in non-volatile memory of the microcontroller or in a separate non-volatile memory module. When the coincidence signal watering for several blocks fogging is the order of their completion in accordance with the specified priority.

Figure 1 shows a block diagram of the automatic control fogging installation.

The device includes switches 1 mode device number of blocks 2 fogging installation, the switch 3 to connect the power source 4 to the blocks 2 fogging installation jumpers 1 mode of the device, as well as cyclic time relay 5, which determines the duration of the presence and absence of food each block fogging installation and consists of a micro controller 6, the first input connected to the output of the real-time clock 7, the second input connected to the memory module 8, and a third input connected to the output of the first encoder 9, the inputs of which are connected with the control buttons 10, the first output of the microcontroller 6 is connected to idcore aliceson alphanumeric indicator 11, and the following outputs by the number of blocks 2 fogging installation connected to respective inputs of the second encoder 12, the outputs of which the number of blocks 2 fogging installation connected to respective control inputs of the switch 3 power supply 4.

The device operates as follows. The control buttons 10 through the first encoder 9 set mode Programming of the microcontroller 6 is displayed on the alphanumeric display 11, and sets the current date, day of the week and astronomical time, and then the parameters of watering for each block 2 fogging position: astronomical time start mode, watering duration, pause duration. Then press control device 10 is placed into the "run"mode, the fixed data is stored in the memory module 8, including when power is off. In the "Operation" at the inputs of the second encoder 12 and, respectively, to the control inputs of the switch 3 are signals which duration and pause between them correspond to the values set in the "Programming". In accordance with the received input control signals, the switch 3 supplies power from the source 4 to 2 blocks fogging installation when the switch 1 in the down position, resulting in done by the out feed water mist on the leaves of green cuttings. In the middle position of switches 1 blocks 2 fogging installation is switched off. The upper position of switch 1 is used to manually supply power to the blocks 2. The coincidence of signals in time at the inputs of the encoder 12, the outputs they appear alternately in accordance with the established priority, i.e. it excludes the simultaneous use of 2 blocks fogging installation.

For convenience of the operator on the display LCD 11 during "run" mode displays the current date, day of week, time of day, and state (irrigation or pause), which is the current or selected to view the fogging unit 2 installation and the time remaining before it expires.

The invention for the four blocks of 2 fogging installation is realized by application of the following basic components: microcontroller 6 PIC16F876; encoders 9, 12 on the chip KEV and KEV, respectively; real-time clock 7 on the chip DS1302; a memory module 8 on the chip FM24C64 or, alternatively, as part of the microcontroller 6; alphanumeric LCD 11 FDCC1602D-NLRFTW-R; switch 3 chips CLA and relay TRIL. As the power source used by network 220 V, 50 Hz. When implementing a program for the microcontroller differentiation is the time of day into four periods: MORNING, afternoon, EVENING, NIGHT. For cardgamecentral when data is entered in the "Programming" sets the start time in the MORNING, DAYS, EVENINGS, NIGHTS and settings watering (watering duration, pause duration). Thus, for the four horticultural crops you can set different irrigation regimes and their changes during the day up to four times taking into account projected changes in climatic environmental factors (temperature, light etc).

Sources of information

1. Pavlov H. and other automation irrigation during the rooting of green cuttings of fruit-berry cultures in plastic film greenhouses// Hardware biological experiments: SB. scient. Tr./ Of agricultural Sciences. Sib. separa-tion. COPCTL.-Novosibirsk, 1988. - c.4-12.

2. Auth. mon. The USSR №288445, IPC A01G 9/26; A01G 27/00. Device for automatic control block fogging installation for green grafting/I.I. Molodtsov (USSR). No. 1386717/30-15; claimed 19.12.69; publ. 03.12.70, bull. No. 36.

The automatic control device fogging installation containing switches the operation mode of the device number of blocks fogging installation, the switch to connect the power source to the blocks fogging installation through switches the operation mode of the device, as well as cyclic timer that determines the duration of the presence and absence of food each block fogging installation, characterized in that the cyclic time relay which consists of a microcontroller, first input connected to the output of the real-time clock, a second input connected to the memory module, and a third input connected to the output of the first encoder, the input of which is connected with the control buttons, the first output of the microcontroller is connected to the liquid crystal alphanumeric display, and the following outputs by the number of blocks fogging installation connected to respective inputs of the second encoder, which outputs the number of blocks fogging installation connected to respective control inputs of the switch power supply.



 

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