CN211702506U

CN211702506U - Lighting control device based on internet of things

Info

Publication number: CN211702506U
Application number: CN202020589984.2U
Authority: CN
Inventors: 郑翼龙; 郑春雪; 刘兵伟; 王文川
Original assignee: Oceanwide Property Management Co ltd
Current assignee: Oceanwide Property Management Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-10-16
Anticipated expiration: 2030-04-20

Abstract

The utility model discloses a lighting control device based on internet of things, including microcontroller, communication circuit and lighting apparatus switch circuit, communication circuit is connected with microcontroller, and microcontroller connects lighting apparatus switch circuit, and lighting apparatus switch circuit includes: the grid electrode of the MOS switch tube is connected with the microcontroller and is used for controlling the conduction or the cut-off of the source electrode and the drain electrode of the MOS switch tube; the relay coil is connected in series with the drain electrode of the MOS switch tube, and the normally open contact and the normally closed contact on the relay are used for connecting a lighting equipment circuit. The utility model discloses the component part is less, and circuit structure optimizes more, and is small, implements the convenience, and manufacturing cost is few, and easy preparation, outside wiring are few easily to be installed, and the range of application is wide, is suitable for mass production.

Description

Lighting control device based on internet of things

Technical Field

The utility model relates to a lighting apparatus control field, more particularly, the utility model relates to a lighting control device based on internet of things.

Background

Most of the existing lighting control modes are local lighting control boxes, so that the implementation difficulty is high, the circuit is complex, the control cost is high, and the operation is troublesome. In some locations, personnel access needs to be safeguarded, for example: in a production site of a chemical plant, a large amount of lighting equipment needs to be installed to meet the requirement of on-site lighting, but when personnel enter the site to control the lighting equipment, the personnel need to wear necessary equipment such as protective tools, gas measuring instruments and the like to go out and come in the site, so that the waste of time is caused, and unnecessary operation and maintenance cost is increased.

The development of the technology of the internet of things promotes the change of the field of automatic control, and the deep integration of the internet of things and multiple fields promotes the intelligent transformation of related industries. In the existing internet of things technology, a person skilled in the art often uses some cost-effective microcontrollers to complete a general data processing process, including data access, parsing and conversion output. For example, a microcontroller for standard communication protocol interpretation and conventional signal processing. The microcontroller is usually a dsp (digital signal processing) digital signal processor, SCM (Single-Chip Microcomputer) Single Chip Microcomputer, FPGA (Field-programmable gate Array), or plc (programmable logic controller) including I/O. How to utilize the technology of the internet of things to form the intellectualization of the lighting control mode, and the lighting control circuit needs to be substantially improved while meeting the requirements of people on different lighting scenes while saving energy.

SUMMERY OF THE UTILITY MODEL

The control circuit for solving current lighting control mode is complicated, can't adapt to the problem of nimble control, the utility model provides a lighting control device based on internet of things.

For realizing foretell technical purpose, the utility model discloses a lighting control device based on internet of things, including microcontroller, communication circuit and lighting apparatus switch circuit, communication circuit is connected with microcontroller, microcontroller connects lighting apparatus switch circuit, lighting apparatus switch circuit includes: the grid electrode of the MOS switch tube is connected with the microcontroller and is used for controlling the conduction or the cut-off of the source electrode and the drain electrode of the MOS switch tube; the relay coil is connected in series with the drain electrode of the MOS switch tube, and the normally open contact and the normally closed contact on the relay are used for being connected with a lighting equipment circuit.

Further, the utility model relates to an illumination control device based on internet of things, its characterized in that: the MOS switch tube grid is connected in series with a charging current limiting resistor R11, the charging current limiting resistor R11 is used for limiting instantaneous charging current, and the resistance of the charging current limiting resistor R11 is 10-100 omega; a bleeder resistor R10 is connected in parallel between the gate and the source of the MOS switch tube, the bleeder resistor R10 is used for rapidly releasing the charges stored in the gate, and the resistance value of the bleeder resistor R10 is 5000-10000 omega.

Further, the utility model relates to an illumination control device based on internet of things, microcontroller adopts the model to be AT89C 2051's singlechip, it has crystal oscillator X2 to establish ties between singlechip XTAL1 pin and XTAL2 pin, and singlechip RST pin is connected with reset button K1, MOS switch tube grid is connected with singlechip P1.0 pin.

Further, the lighting control device based on the internet of things technology, wherein the communication circuit comprises an Ethernet interface socket and an Ethernet control chip which are connected with each other, and the Ethernet control chip is connected with the single chip microcomputer.

Further, the lighting control device based on the internet of things technology comprises an ethernet interface socket and an ethernet control chip, wherein the ethernet interface socket comprises an RJ45 interface with a model number of HR911105A, the ethernet control chip has a model number of ENC28J60, an RJ45 interface TCT pin is connected to a power supply, an RJ45 interface LEDA + pin is connected to an ethernet control chip LEDA pin, an RJ45 interface LEDB + pin is connected to an ethernet control chip LEDB pin, an RJ45 interface TD + pin is connected to an ethernet control chip TPOUT + pin, an RJ45 interface TD-pin is connected to an ethernet control chip TPOUT-pin, an RJ45 interface RD + pin is connected to an ethernet control chip TPIN + pin, and an RJ45 interface RD-pin is connected to an ethernet control chip TPIN-pin; a pin P3.2/INT0 of the single chip microcomputer is connected to an output end of a first logic gate, a pin P3.3/INT1 of the single chip microcomputer is connected to an output end of a second logic gate, a pin P1.7 of the single chip microcomputer is connected to an output end of a third logic gate, a pin P1.6 of the single chip microcomputer is connected to an output end of a fourth logic gate, a first input end of the first logic gate is connected with an INT pin of an Ethernet control chip, a first input end of the second logic gate is connected with a WOL pin of the Ethernet control chip, a first input end of the third logic gate is connected with a CLKOUT pin of the Ethernet control chip, a first input end of the fourth logic gate is connected with an SO pin of the Ethernet control chip, and second input ends of the first logic gate, the second logic gate, the third logic gate and the fourth logic; the RESET pin of the Ethernet control chip is connected with the pin P1.2 of the singlechip, the pin SI of the Ethernet control chip is connected with the pin P1.3 of the singlechip, the pin SCK of the Ethernet control chip is connected with the pin P1.4 of the singlechip, and the pin CS of the Ethernet control chip is connected with the pin P1.5 of the singlechip.

Further, the lighting control device based on the internet of things technology is characterized in that the first logic gate, the second logic gate, the third logic gate and the fourth logic gate are all 74HCTO8 chips.

Further, the lighting control device based on the internet of things technology is characterized in that the MOS switch tube is an N-channel field effect transistor Q1.

Further, the lighting control device based on the internet of things technology is characterized in that the contact of the relay is connected with one or more lighting equipment lines in series.

The utility model has the advantages that: the utility model consists of a microcontroller, a communication circuit and a lighting device switch circuit, and has the advantages of less component parts, simple circuit structure, small volume and low production cost; the remote control of the lighting equipment is facilitated by the arranged communication circuit, and the flexible control is adapted; the installation is convenient and fast, and the switch can be used for controlling the switches of the lighting equipment in all different scenes; a single lighting device can be controlled or multiple lighting devices can be controlled simultaneously. To sum up, the utility model relates to a can reduce control cost, convenient operation's hardware system structure.

Drawings

Fig. 1 is a schematic structural view of an illumination control device based on the internet of things technology according to the present invention;

fig. 2 is a schematic diagram of the circuit structure of the microcontroller according to the present invention;

fig. 3 is a schematic diagram of the switch circuit structure of the lighting device of the present invention;

fig. 4 is a schematic diagram of the ethernet interface socket circuit structure of the present invention;

fig. 5 is a schematic diagram of the circuit structure of the ethernet control chip of the present invention.

Detailed Description

The lighting control device based on the internet of things technology of the present invention is explained and explained in detail below with reference to the drawings.

As shown in fig. 1-5, the utility model discloses a lighting control device based on internet of things, including microcontroller 1, communication circuit 2 and lighting apparatus switch circuit 3, communication circuit 2 is connected with microcontroller 1, and microcontroller 1 connects lighting apparatus switch circuit 3, and lighting apparatus switch circuit 3 includes: the grid electrode of the MOS switch tube is connected with the microcontroller 1 and is used for controlling the conduction or the cut-off of the source electrode and the drain electrode of the MOS switch tube; the relay coil is connected in series with the drain electrode of the MOS switch tube, and the normally open contact and the normally closed contact on the relay are used for connecting a lighting equipment circuit.

Those skilled in the art will understand that: the microcontroller may adopt a dsp (digital signal processing) digital signal processor, an SCM (Single-Chip Microcomputer) Single Chip Microcomputer, an FPGA (Field-Programmable Gate Array), an mcu (microcontroller unit) system board, an soc (system on a Chip) system board, or a plc (Programmable Logic controller) minimum system including I/O, and may realize data transmission by using a built-in Logic, and receive and execute a control instruction from a control terminal.

From the above, the utility model is composed of the microcontroller 1, the communication circuit 2 and the lighting equipment switch circuit 3, and has the advantages of few components, simple circuit structure, small volume and low production cost; the communication circuit 2 is connected with the microcontroller 1, a local area network or an internet network is constructed through the communication circuit 2, and the communication circuit 2 is used for receiving a control instruction sent by the control terminal and transmitting the control instruction to the microcontroller 1 to realize remote control of the lighting equipment switch circuit 3; the microcontroller 1 is connected with the lighting device switch circuit 3, and the microcontroller 1 is used for executing a control instruction sent by the control terminal and controlling the lighting device switch circuit 3 to be turned on or turned off; the lighting equipment switching circuit 3 comprises an MOS switching tube and a relay, wherein the grid electrode of the MOS switching tube is connected with the microcontroller 1 and is used for controlling the conduction or the cut-off of the source electrode and the drain electrode of the MOS switching tube; a relay coil is connected in series with a drain electrode of the MOS switch tube, normally open and normally closed contacts on the relay are used for being connected with a lighting equipment circuit (namely, a switch used as the lighting equipment circuit), the microcontroller 1 controls a grid electrode of the MOS switch tube to be switched on or switched off, when a source electrode and a drain electrode of the MOS switch tube are switched on, the coil of the relay is electrified to drive the normally open contact on the relay to be closed, the lighting equipment circuit is switched on, and the lighting equipment is lightened; when the source electrode and the drain electrode of the MOS switch tube are turned off, the coil of the relay loses power, the normally closed contact on the relay is closed, the lighting equipment circuit is disconnected, and the lighting equipment is turned off. The lighting equipment can be operated at any time according to the requirement, and the purpose of saving the power consumption of the lighting equipment is achieved.

As shown in fig. 3, in an embodiment of the present invention, the current capacity of the gate lead of the MOS switch tube has a certain limit, when the MOS switch tube is turned on, the gate instantaneous charging current of the MOS switch tube is huge, the MOS switch tube is very easy to damage, and the operation stability of the device is affected, in order to prevent the above situation from occurring, a charging current limiting resistor R11 is connected in series to the gate of the MOS switch tube, the charging current limiting resistor R11 is used for limiting the instantaneous charging current, and the resistance of the charging current limiting resistor R11 is 10-100 Ω; when the MOS switch tube is turned off, the charging of the equivalent capacitance of the grid electrode of the MOS switch tube is already finished, the charge stored by the grid electrode of the MOS switch tube needs to be released so as to meet the normal operation of the grid electrode of the MOS switch tube when the MOS switch tube is turned on next time, a discharge resistor R10 is connected between the grid electrode and the source electrode of the MOS switch tube in parallel, the discharge resistor R10 is used for rapidly releasing the charge stored by the grid electrode, and the resistance value of the discharge resistor R10 is 5000-10000 omega.

As shown in fig. 2, as the embodiment of the present invention, microcontroller 1 adopts a single chip microcomputer whose model is AT89C2051, and the chip contains a read only memory (pemom) with 2k bytes and a Random Access Memory (RAM) with 128bytes, and performs basic application calculation on part of data in the gateway, thereby greatly shortening the data transmission path, reducing the calculation cost of remote server or cloud server, and being applicable to various smart application scenarios of internet of things. In order to meet the working requirement of the single chip microcomputer and ensure the operation stability of the single chip microcomputer, a crystal oscillator X2 is connected in series between an XTAL1 pin and an XTAL2 pin of the single chip microcomputer, a RST pin of the single chip microcomputer is connected with a reset button K1, a grid electrode of an MOS (metal oxide semiconductor) switch tube is connected with a P1.0 pin of the single chip microcomputer, and the MOS switch tube is an N-channel field effect tube Q1. The grid of the field effect transistor Q1 is a control end, when lighting equipment needs to be lightened, a positive breakover voltage is output to the field effect transistor Q1 through a pin P1.0 of the singlechip; when the lighting equipment needs to be turned off, the forward conduction voltage output to the field effect transistor Q1 through the pin P1.0 of the singlechip is reduced to zero or reverse voltage.

As shown in fig. 4-5, the wired communication circuit 03 in an embodiment of the present invention includes an ethernet interface socket and an ethernet control chip connected to each other, and the ethernet control chip is connected to the single chip.

The Ethernet interface socket comprises an RJ45 interface with the model of HR911105A, and the model of the Ethernet control chip is ENC28J 60. The RJ45 interface and the ethernet control chip are connected to other components as follows: the RJ45 interface TCT pin is connected to a power supply, the RJ45 interface LEDA + pin is connected with the Ethernet control chip LEDA pin, the RJ45 interface LEDB + pin is connected with the Ethernet control chip LEDB pin, the RJ45 interface TD + pin is connected with the Ethernet control chip TPOUT + pin, the RJ45 interface TD-pin is connected with the Ethernet control chip TPOUT-pin, the RJ45 interface RD + pin is connected with the Ethernet control chip TPIN + pin, and the RJ45 interface RD-pin is connected with the Ethernet control chip TPIN-pin.

In order to control the on-off of the lighting equipment switch circuit through an I/O port of the single chip microcomputer so as to achieve the purpose of controlling the lighting equipment, the single chip microcomputer is used for protocol conversion so as to communicate the lighting equipment switch circuit 3 with a control terminal on the Internet, and further realize the control of the Internet of things. The specific setting is as follows: the single chip microcomputer is connected with a first logic gate, a second logic gate, a third logic gate and a fourth logic gate. The pin P3.2/INT0 of the single chip microcomputer is connected to the output end of the first logic gate, the pin P3.3/INT1 of the single chip microcomputer is connected to the output end of the second logic gate, the pin P1.7 of the single chip microcomputer is connected to the output end of the third logic gate, the pin P1.6 of the single chip microcomputer is connected to the output end of the fourth logic gate, the first input end of the first logic gate is connected with the INT pin of the Ethernet control chip, the first input end of the second logic gate is connected with the WOL pin of the Ethernet control chip, the first input end of the third logic gate is connected with the CLKOUT pin of the Ethernet control chip, the first input end of the fourth logic gate is connected with the SO pin of the Ethernet control chip, and the second input ends of the first logic gate, the second logic gate, the. The RESET pin of the Ethernet control chip is connected with the pin P1.2 of the singlechip, the pin SI of the Ethernet control chip is connected with the pin P1.3 of the singlechip, the pin SCK of the Ethernet control chip is connected with the pin P1.4 of the singlechip, and the pin CS of the Ethernet control chip is connected with the pin P1.5 of the singlechip.

The first logic gate, the second logic gate, the third logic gate and the fourth logic gate adopt 74HCTO8 chips.

It should be noted that the contacts of the relay of the present invention are connected in series with one or more lighting device circuits to achieve the purpose of controlling a single lighting device or simultaneously controlling a plurality of lighting devices.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the terms "this embodiment," "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, and simple improvements made in the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an illumination control device based on internet of things, its characterized in that: including microcontroller (1), communication circuit (2) and lighting apparatus switch circuit (3), communication circuit (2) are connected with microcontroller (1), lighting apparatus switch circuit (3) is connected in microcontroller (1), lighting apparatus switch circuit (3) includes: the grid electrode of the MOS switch tube is connected with the microcontroller (1) and is used for controlling the conduction or the cut-off of the source electrode and the drain electrode of the MOS switch tube; the relay coil is connected in series with the drain electrode of the MOS switch tube, and the normally open contact and the normally closed contact on the relay are used for being connected with a lighting equipment circuit.

2. The lighting control device based on the internet of things technology as claimed in claim 1, wherein: the MOS switch tube grid is connected in series with a charging current limiting resistor R11, the charging current limiting resistor R11 is used for limiting instantaneous charging current, and the resistance of the charging current limiting resistor R11 is 10-100 omega; a bleeder resistor R10 is connected in parallel between the gate and the source of the MOS switch tube, the bleeder resistor R10 is used for rapidly releasing the charges stored in the gate, and the resistance value of the bleeder resistor R10 is 5000-10000 omega.

3. The lighting control device based on the internet of things technology as claimed in claim 2, wherein: microcontroller (1) adopts the singlechip that the model is AT89C2051, it has crystal oscillator X2 to establish ties between singlechip XTAL1 pin and XTAL2 pin, and singlechip RST pin is connected with reset button K1, MOS switch tube grid is connected with singlechip P1.0 pin.

4. The lighting control device based on the internet of things technology as claimed in claim 3, wherein: the communication circuit (2) comprises an Ethernet interface socket and an Ethernet control chip which are connected with each other, and the Ethernet control chip is connected with the single chip microcomputer.

5. The lighting control device based on the internet of things technology as claimed in claim 4, wherein: the Ethernet interface socket comprises an RJ45 interface with the model number of HR911105A, the model number of the Ethernet control chip is ENC28J60, a TCT pin of an RJ45 interface is connected to a power supply, an LEDA + pin of the RJ45 interface is connected with an LEDA pin of the Ethernet control chip, an LEDB + pin of an RJ45 interface is connected with an LEDB pin of the Ethernet control chip, a TD + pin of an RJ45 interface is connected with a TPOUT + pin of the Ethernet control chip, a TD-pin of an RJ45 interface is connected with a TPOUT-pin of the Ethernet control chip, an RD + pin of the RJ45 interface is connected with a TPIN + pin of the Ethernet control chip, and an RD-pin of an RJ45 interface is connected with the TPIN-pin of the Ethernet control chip; a pin P3.2/INT0 of the single chip microcomputer is connected to an output end of a first logic gate, a pin P3.3/INT1 of the single chip microcomputer is connected to an output end of a second logic gate, a pin P1.7 of the single chip microcomputer is connected to an output end of a third logic gate, a pin P1.6 of the single chip microcomputer is connected to an output end of a fourth logic gate, a first input end of the first logic gate is connected with an INT pin of an Ethernet control chip, a first input end of the second logic gate is connected with a WOL pin of the Ethernet control chip, a first input end of the third logic gate is connected with a CLKOUT pin of the Ethernet control chip, a first input end of the fourth logic gate is connected with an SO pin of the Ethernet control chip, and second input ends of the first logic gate, the second logic gate, the third logic gate and the fourth logic; the RESET pin of the Ethernet control chip is connected with the pin P1.2 of the singlechip, the pin SI of the Ethernet control chip is connected with the pin P1.3 of the singlechip, the pin SCK of the Ethernet control chip is connected with the pin P1.4 of the singlechip, and the pin CS of the Ethernet control chip is connected with the pin P1.5 of the singlechip.

6. The lighting control device based on the internet of things technology of claim 5, wherein: the first logic gate, the second logic gate, the third logic gate and the fourth logic gate are all 74HCTO8 chips.

7. An illumination control device based on the internet of things technology according to any one of claims 1 to 6, wherein: the MOS switch tube is an N-channel field effect tube Q1.

8. An illumination control device based on the internet of things technology according to any one of claims 1 to 6, wherein: the contacts of the relay are connected in series with one or more lighting device lines.