CN108967127A - Intelligent water sprinkling device - Google Patents

Abstract

A kind of intelligent water sprinkling device provides comparison signal by sample circuit for comparator, controls solenoid valve by reference comparator and output driving circuit and closes or opens water route, saves manpower, watering is appropriate, immediately, due to there is isolated power supply power supply station with safe and reliable.

Description

Intelligent water sprinkling device

Technical field

It is woods circle, the flowers and plants or the greenbelt in business unit of school etc. of park and highway the present invention relates to one kind The circuit of Self-watering driving, i.e. intelligent water sprinkling device.

Background technique

So far, park, the flowers and plants by highway or the greenbelt in business unit of school are all in the Heavenly Stems Artificial watering, and that not to be more be exactly artificial watering is few, it is just right to make to sprinkle water, it is necessary to which automation watering need to have oneself Dynamicization control circuit controls, at present or a blank.

Summary of the invention

To realize automation watering, the above blank is filled up, overcomes artificial watering that manpower is caused to waste, the waste of water needs Realize automatic processing.The present invention is implemented as follows: its automatic processing circuit includes, soil dry-wet signal processing sampling electricity Road, reference comparator, output driving circuit, four part such as power-supplying circuit, power circuit is for safety with isolation transformation 220v alternating current is converted into low alternating current by device, is transferred to 4-18v low-voltage DC using DC voltage-stabilizing or three end integrated voltage-stabilizeds, is Soil dry-wet signal sampling circuit, reference comparator and output driving circuit power supply.The soil that soil dry-wet sample circuit picks up Dry and wet signal, input comparator make comparator output high level or low level compared with reference signal.Can generally make, soil compared with It does and exports high level when need to sprinkle water, push driving circuit conducting that relay is made to be attracted to make solenoid valve opening watering, work as soil Compare moist or watering to when needing to stop, soil dry-wet sample circuit provides a conversion signal for benchmark comparator, is allowed to defeated Low level out disconnects output driving circuit, and solenoid valve, which is closed, stops watering, and reference comparator can use LM393 or other voltages Comparator.

Attached drawing drawing explanation

Attached drawing 1 is schematic structural view of the invention figure；

Attached drawing 2 is the electrical principle block diagram of controller 8 of the present invention.

In attached drawing 1,1 pipe fitting, 2 solenoid valves, 3 mouths, 4 bearings, 5 water diversing heads, shape sparge pipe in June, 7 water jets, 8 controls Device processed, 9 probes.

In fig 2,11 isolating transformer, 12 bridge rectifier filter circuits, 13 integrated regulators, 14 reference comparators, 15 output driving circuits, 16 solenoid valves, 17 soil dry-wet sample circuits.

Specific embodiment

Now in conjunction with Detailed description of the invention specific embodiments of the present invention.In attached drawing 1, entire scheme by pipe fitting 1, solenoid valve 2, Mouth 3, bearing 4, water diversing head 5, moon shape sparge pipe 6, water jet 7, controller 8, probe composition 9.Pipe fitting 1 is and light water The mating movable head to connect is managed, commercially available low-voltage solenoid valve can be used in solenoid valve 2, and mouth 3 is with gasket and water diversing head 5 by not Rust molten steel pipe production, bearing 4 be stuck between mouth 3 and water diversing head 5 convenient for moon shape sparge pipe 6 spray water when using the recoil of water and Rotation, the moon shape sparge pipe 6 by multiple groups water jet 7, controller 8 is controlled whether solenoid valve 2 works, and probe 9 is by stainless steel Material is made into, and is embedded in the soil of pre- watering, is detected soil dry-wet, is linked by conducting wire and controller 8.Fig. 2 is controller 8 Circuit structure block diagram.Isolating transformer 11 is changed into 220v voltage the low tension with mains isolation.Through bridge rectifier wave circuit After 12 rectified wave waves, it is changed into low-voltage DC, such as 12v or 18v using integrated regulator 13, provides direct current for rear class. Low-voltage DC can also be provided for rear class with switch isolation power supply.Soil dry-wet sample circuit 17 is two stainless steel rebars Or stainless steel tube, length are 10-30cm as probe, two stainless steel wires access on signal input terminals, and the two are popped one's head in It is embedded in when use in the flowers and plants ground that need to be sprinkled water, the depth buried is 15-30cm deep, and distance generally takes 10-50cm preferably.Between two probes Resistance value is big to illustrate that soil dry needs to sprinkle water, and resistance value is small between two probes illustrates that soil moisture does not need watering of sprinkling water or stop.Benchmark ratio Compared with device 14, input terminal generally takes backward end using two series resistances, one of them is adjustable resistance, mentions for benchmark comparator 4 For reference signal, two probes of soil dry-wet sample circuit 17, one connects a pull-up resistor, the public same phase of termination comparator End, another probe earthing potential end, reference comparator 14 is according to the sampling voltage and reference voltage of soil dry-wet sample circuit 17 Compare, so that output end is exported corresponding high potential or low potential, be pushed to the on or off of output driving circuit, output driving Circuit 15 selects transistor switching circuit or can turn off pipe type switch pipe.Whether the conducting of output circuit 15, electromagnetism relay is controlled The actuation and release of device realize watering or stop watering to drive solenoid valve to close or open water route.

It can be seen from the above embodiments that, as long as whole process connects water route and Self-watering can be realized in circuit, and When, it is appropriate, water-saving, save manpower.

Claims (1)

1. a kind of intelligent water sprinkling device, including isolation power supply circuit, reference comparator, the part such as soil dry-wet sample circuit form, It is characterized in that, isolation power supply circuit can be the integrated DC voltage regulator circuit of isolating transformer, be also possible to switching mode every From direct current regulation circuit, soil dry-wet sample circuit is made by two stainless reinforcing bars or stainless steel tube.