CN213242397U

CN213242397U - Wisdom courtyard system

Info

Publication number: CN213242397U
Application number: CN202022368625.7U
Authority: CN
Inventors: 张静中; 李明; 徐鹏飞; 熊张平
Original assignee: Jiangxi Zhongyeguang Culture Technology Co ltd
Current assignee: Jiangxi Zhongyeguang Culture Technology Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-05-18
Anticipated expiration: 2030-10-22

Abstract

The utility model provides a smart yard system, which comprises a first power circuit, wherein the first power circuit supplies power to a main controller; the second power supply circuit supplies power to the relay, and the relay is electrically connected with the strong current device; the main controller outputs a control signal to the photoelectric coupler, and the output end of the photoelectric coupler provides a driving signal to the coil of the relay. The utility model discloses can avoid the high-voltage of forceful electric power device, electric current to cause the influence to main control unit's work.

Description

Wisdom courtyard system

Technical Field

The utility model relates to the field of electronic technology, it is specific, relate to a wisdom courtyard system.

Background

Along with the living environment of modern people is better and better, more and more people purchase the villa to promote the quality of living, also more and more various to the design demand of villa courtyard, and the landscape garden also faces same design demand. The traditional courtyard (garden) equipment control system is generally switched on and off through a fixed switch or is controlled through infrared wireless remote control, and the control system is limited by obstacles and distances and cannot realize remote control.

Therefore, people develop a smart courtyard system which realizes remote control through wireless signals, create rich interactive landscapes such as lamplight, music and artistic fountain, and provide new functions such as intelligent irrigation and smart energy conservation. This kind of wisdom garden system need set up main control unit and a plurality of consumer, because main control unit is the low-voltage device, generally uses 5V or 3.3V's voltage direct current, and consumer usually is stereo set, illumination lamps and lanterns etc. and operating voltage is higher, even uses 220V's alternating current. Because the operating voltage of the electric device is higher, when the main controller controls the electric device to work, the higher operating voltage of the electric device easily influences the main controller, and sometimes the main controller can not work normally.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a wisdom garden system to solve and cause the problem of influence to main control unit with the higher operating voltage of electrical apparatus.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a smart yard system comprising: the first power supply circuit supplies power to the main controller; the second power supply circuit supplies power to the relay, and the relay is electrically connected with the strong current device; the main controller outputs a control signal to the photoelectric coupler, and the output end of the photoelectric coupler provides a driving signal to the coil of the relay.

Further, the photoelectric coupler outputs a signal to the Darlington tube, and the Darlington tube outputs a signal to the coil of the relay.

Further, the first power supply circuit comprises a voltage reduction circuit which supplies power to the main controller.

Further, the voltage reduction circuit receives the 12V direct-current voltage, reduces the 12V direct-current voltage into the 3.3V direct-current voltage and supplies power to the main controller.

Further, the first power supply circuit includes a filter capacitor, and the filter capacitor is connected to the output end of the voltage reduction circuit.

Further, the second power supply circuit supplies a direct-current voltage of 12V to the relay.

Further, the second power supply circuit includes a zener diode.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a photoelectric coupler realizes the main control unit power supply and the isolation of forceful electric power device power supply, and photoelectric coupler control relay's break-make promptly is controlling the power supply of forceful electric power device through the relay, and the electric current of forceful electric power device can not hard to main control unit, avoids main control unit to receive the influence of the voltage of forceful electric power device, ensures main control unit's normal work.

Drawings

Fig. 1 is an electrical schematic block diagram of an embodiment of the present invention.

Fig. 2 is an electrical schematic diagram of a first power circuit according to an embodiment of the present invention.

Fig. 3 is an electrical schematic diagram of a second power circuit according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model relates to a wisdom courtyard system, see figure 1, wisdom courtyard system includes first power supply circuit 11, main control unit 12, optoelectronic coupler 16, darlington pipe 13, second power supply circuit 14 and relay, and the relay includes relay coil K1A and relay switch K1B. The first power supply circuit 11 receives a 12V dc voltage, converts the 12V dc voltage into a 3.3V low-voltage dc voltage, and outputs the 3.3V dc voltage to the main controller 12. The main controller 12 may adopt a single chip microcomputer of STM32F103ZET6 model, and is electrically connected with the photocoupler 16. For example, two pins of the main controller 12 are connected to two pins of a light emitting diode of the photocoupler 16, thereby controlling the light emitting diode to emit light. The phototriode of the photocoupler 16 is connected to the darlington tube 13 and outputs a driving signal to the darlington tube 13, and the darlington tube 13 is connected to the relay coil K1A to control the on/off of the relay coil K1A.

In the present embodiment, the second power supply circuit 14 supplies power to the relay coil K1A, for example, the second power supply circuit 14 outputs a direct current voltage of 12V and supplies power to the relay coil K1A through the resistor R1, and one end of the relay coil K1A is grounded. One end 18 of the relay switch K1B is connected to a power source, for example, to high voltage dc power, which may be 24V, 36V or even higher, or of course, an ac power source, for example, 220V ac power. The other end 19 of the relay switch K1B is connected to a strong electric device, such as a sound box, an LED lamp or an irrigation system.

Referring to fig. 2, the first power circuit 11 has a voltage-dropping circuit, in this embodiment, the voltage-dropping circuit includes a voltage-stabilizing chip U3, a fuse F1 is provided at the power input terminal, and the fuse F1 is connected to a diode D3. The first power circuit 11 is further provided with a zener diode TVS1, and one end of the zener diode TVS1 forms a dc voltage of 12V. The filter capacitors C1 and C2 are connected in parallel to two ends of the zener diode TVS1, the input 12V dc voltage is input to the zener chip U3, the zener chip U3 outputs the stepped-down dc voltage, i.e., 3.3V low-voltage dc, the output low-voltage dc forms a stable low-voltage dc, i.e., 3.3V dc voltage, after passing through the capacitor C3, the inductor L1, the filter capacitors C4 and C5, the dc voltage supplies power to the main controller 12. In this embodiment, it can be seen that the filter capacitors C4 and C5 are disposed at the output end of the voltage reduction circuit.

Referring to fig. 3, the input terminal of the second power supply circuit 14 is provided with a fuse F2, and the fuse F2 is connected to a diode D8. The second power circuit 11 is further provided with a zener diode TVS2, and one end of the zener diode TVS2 forms a dc voltage of 12V. The rear stage of the voltage stabilizing diode TVS2 is provided with filter capacitors C6, C7 and C8 which are connected in parallel, and the three capacitors filter 12V low-voltage direct current of the voltage stabilizing diode TVS2 so as to output stable low-voltage direct current power and supply power to the relay coil K1A.

When the main controller 12 controls the non-operation of the strong current device, the main controller 12 loads low level signals to two pins of the light emitting diode of the photoelectric coupler 16, at this time, the light emitting diode does not emit light, the photoelectric triode outputs the low level signals, at this time, the darlington tube 13 is not conducted, no current flows through the relay coil K1A, and therefore, the relay switch K1B is in an off state, and the strong current device cannot operate.

When the main controller 12 controls the operation of the strong electric device, the main controller 12 loads a high level signal to one pin of the light emitting diode of the photoelectric coupler 16 and loads a high level signal to the other pin, at this time, the light emitting diode emits light, the phototriode outputs a high level signal, at this time, the darlington tube 13 is conducted, and current flows through the relay coil K1A, so that the relay switch K1B is in a closed state, and the strong electric device starts to operate.

Therefore, the high-voltage current of the strong current device can be prevented from influencing the work of the main controller through the isolation effect of the photoelectric coupler, and the normal work of the main controller is ensured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A smart yard system comprising:

a first power supply circuit that supplies power to a main controller;

its characterized in that, this wisdom garden system still includes:

the second power supply circuit supplies power to a relay, and the relay is electrically connected with a strong current device;

the main controller outputs a control signal to the photoelectric coupler, and the output end of the photoelectric coupler provides a driving signal for the coil of the relay.

2. The smart yard system of claim 1, wherein:

the photoelectric coupler outputs signals to the Darlington tube, and the Darlington tube outputs signals to the coil of the relay.

3. The smart yard system of claim 1 or 2, wherein:

the first power supply circuit includes a voltage-reducing circuit that supplies power to the main controller.

4. The smart yard system of claim 3, wherein:

the voltage reduction circuit receives 12V direct current voltage, reduces the 12V direct current voltage into 3.3V direct current voltage and then supplies power to the main controller.

5. The smart yard system of claim 3, wherein:

the first power supply circuit comprises a filter capacitor, and the filter capacitor is connected to the output end of the voltage reduction circuit.

6. The smart yard system of claim 1 or 2, wherein:

the second power supply circuit supplies a direct-current voltage of 12V to the relay.

7. The smart yard system of claim 6, wherein:

the second power supply circuit comprises a voltage stabilizing diode.