CN212278509U

CN212278509U - PLC intelligent lighting control system

Info

Publication number: CN212278509U
Application number: CN202021099000.9U
Authority: CN
Inventors: 王永冰; 施永华
Original assignee: Jiangmen Liangdu Lighting Technology Co ltd
Current assignee: Guangdong Kaili Lighting Technology Co.,Ltd.
Priority date: 2020-06-15
Filing date: 2020-06-15
Publication date: 2021-01-01
Anticipated expiration: 2030-06-15

Abstract

The utility model discloses a PLC intelligence lighting control system, including the control source, receive control signal and output carrier wave power's PLC signal converter, carrier wave power exports for a plurality of lighting module, lighting module includes parallel connection to PLC signal converter's constant current drive power supply and PLC controller, is connected to LED lamp pearl on the constant current drive power supply, the utility model discloses a control source is to the wireless conveying control signal of PLC signal converter, by PLC signal converter again with control signal loading to the power line in, conveys control signal simultaneously to a plurality of lighting module through the power line. Because PLC signal converter passes through power carrier transmission signal between a plurality of lighting module, do not have a plurality of lighting module and receive the inconsistent condition of data package, a plurality of lighting module's dimming control uniformity is good, simultaneously, need not lay extra control scheme, and the wiring is simple.

Description

PLC intelligent lighting control system

Technical Field

The utility model relates to a LED lamps and lanterns control system specifically discloses a PLC intelligence lighting control system.

Background

The dimming of the lighting system comprises a wired mode and a wireless mode, and the wired dimming is poor in use convenience and gradually out of time due to the fact that the wired dimming needs to be operated in a fixed mode in a fixed place; the wireless dimming mode is gradually becoming the mainstream of the market due to the fact that the control source can move as required and is convenient to use. The existing wireless dimming system mainly comprises a lamp, a signal receiver arranged on the lamp and a control source for receiving a signal transmitted by the signal receiver, wherein the signal transmission mode mainly comprises Bluetooth, WIFI, infrared rays and the like, and the control source can be a special remote controller or a mobile phone and the like. In the lighting system comprising a plurality of lamps, a control source simultaneously sends data packets to the plurality of lamps, and each lamp receives the data packets and then controls the brightness or color change of the lamp according to an instruction. Because the geographic environment of each lamp is different, the distance between each lamp and the control source is different from the condition of the obstacle, so that the condition that each lamp receives the data packet is different, the condition that part of lamps receive the data packet and the condition that part of lamps cannot receive the data packet frequently occur, the dimming of a plurality of lamps is asynchronous, and the use effect is influenced.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the problems in the prior art, it is necessary to provide a PLC intelligent lighting control system having a simple structure, easy wiring, and good synchronization.

In order to solve the prior art problem, the utility model discloses a PLC intelligent lighting control system, including the control source that sends control signal, receive control signal and output carrier wave power's PLC signal converter, carrier wave power output gives a plurality of lighting modules, lighting module includes the constant current drive power supply and the PLC controller of parallel connection to PLC signal converter, is connected to LED lamp pearl on the constant current drive power supply, the constant current drive power supply includes rectification filter circuit, and rectification filter circuit's input is connected to carrier wave power's zero-fire line, and its output is connected to IC power supply circuit, and IC power supply circuit's output is connected to master control IC, and master control IC's output is connected to constant current drive circuit, and constant current drive circuit's output is connected to LED lamp pearl; the output end of the PLC controller is connected to the main control IC, and the PLC controller decodes the PLC signal in the carrier power and outputs the PLC signal to the main control IC.

The utility model has the advantages that: the utility model discloses a control source is to the wireless transmission control signal of PLC signal converter, again by PLC signal converter with control signal loading to the power line, through the power line to a plurality of lighting module conveying control signal simultaneously, because through power line carrier transmission signal between PLC signal converter and a plurality of lighting module, do not have the condition that a plurality of lighting module received the data package inconsistent, a plurality of lighting module adjust luminance the uniformity good, simultaneously, need not lay extra control scheme, the wiring is simple.

Drawings

Fig. 1 is a block diagram of the system structure of the present invention.

Fig. 2 is a block diagram of a system configuration of the constant current driving power supply.

Fig. 3 is a schematic diagram of the circuit structure of the present invention.

PLC: the Power line Communication is abbreviated as Power line Communication.

Detailed Description

For further understanding of the features and technical means, as well as the specific objects and functions of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Refer to fig. 1. The utility model provides a PLC intelligence lighting control system, is including sending control signal's control source 1, and this control source 1 can be special remote controller or installs relevant APP's cell-phone, receives control signal and output carrier wave power's PLC signal converter 2, carrier wave power exports simultaneously for a plurality of lighting module 345, lighting module 345 includes parallel connection to PLC signal converter 2's constant current drive power supply 3 and PLC controller 4, is connected to LED lamp pearl 5 on the constant current drive power supply 3.

Refer to fig. 2. The utility model discloses a constant current drive power supply 3 includes rectifier filter circuit 31, and rectifier filter circuit 31's input is connected to carrier power's zero live wire, its output are connected to IC power supply circuit 32, and IC power supply circuit 32's output is connected to master control IC30, and master control IC 30's output is connected to constant current drive circuit 33, and constant current drive circuit 33's output is connected to LED lamp pearl 5. The output end of the PLC controller 4 is connected to the main control IC30, and the former decodes the PLC signal in the carrier power and outputs the decoded signal to the latter.

Refer to fig. 3. The main control IC30 includes a chip power supply pin VCC, a feedback signal sampling pin FB, a loop compensation pin COMP, a chip ground pin GND, an analog dimming signal input pin DIM, a pulse width modulation signal input pin PWM, a driving signal output pin GATE, and a primary current sampling pin CS. The rectifying and filtering circuit 31 includes a patch bridge stack 311 and a first capacitor C1 connected to an output terminal of the patch bridge stack 311, where the output terminal includes a positive output terminal and a ground terminal. The IC power supply circuit 32 includes a first resistor R1 connected to the positive output terminal of the rectifying and filtering circuit 31, and the first resistor R1 is connected to the ground terminal through a second capacitor C2; the energy storage device comprises a second resistor R2 and a third resistor R3 which are connected in series, and an energy storage inductor L which is connected with the second resistor R2 and the third resistor R3 in parallel, wherein one end of each of the second resistor R2, the third resistor R3 and the energy storage inductor L is grounded, and the other end of each of the second resistor R2, the third resistor R3 and the energy storage inductor L is connected between the first resistor R1 and the second capacitor C2 through a first backward diode D1. A power supply pin VCC of the master IC30 is connected between the first resistor R1 and the first capacitor C1, a feedback signal sampling pin FB is connected between the second resistor R2 and the third resistor R3, a loop compensation pin COMP is connected to a ground terminal through the third capacitor C3, and a chip ground pin GND is connected to the ground terminal. The lighting driving circuit 33 comprises a MOS transistor 331 and a current transformer 332; the GATE of the MOS transistor 331 is connected to the driving signal output pin GATE of the main control IC30, and the source thereof and the primary side current sampling pin CS of the main control IC30 are connected to the ground terminal through the fourth resistor R4; the input end of the current transformer 332 is connected to the positive output end of the rectifying and filtering circuit 31 and the drain of the MOS transistor, and the input end of the current transformer 332 is further connected with an RC parallel circuit 333 and a second reverse diode D2 connected in series with the RC parallel circuit 333; the output end of the current transformer 332 is connected in series with a forward diode D and a fourth capacitor C4. The LED lamp 5 is connected in parallel with the fourth capacitor C4. The PLC controller 4 includes a differential positive terminal TX _ P, a differential secondary terminal TX _ N, a first output pin PWM1, and a second output pin PWM 2. The first output pin PWM1 and the second output pin PWM2 are respectively connected to the analog dimming signal input pin DIM and the pulse width modulation signal input pin PWM of the main control IC30, wherein the first output pin PWM1 is responsible for addressing, and the second output pin PWM2 is responsible for generating control signals. The analog dimming signal input pin DIM is connected to the ground terminal through the fifth capacitor C5. The differential positive terminal TX _ P and the differential secondary terminal TX _ N are respectively connected to the output terminal of the transformer 6. One input end of the transformer 6 is directly connected to the zero line and the live line of the carrier power line, and the other input end of the transformer is connected to the zero line and the live line of the carrier power line through a sixth capacitor C6.

The utility model discloses a control principle is: firstly, a control source 1 sends out a control signal in a wireless transmission mode; then, the PLC signal converter 2 receives the control signal, converts the control signal into a PLC signal, loads the PLC signal into a zero-live line of the commercial power, and simultaneously outputs carrier power to a plurality of lighting modules; finally, the constant current driving power supply 3 in the lighting module 345 converts the carrier power into a low-voltage direct current power supply to drive the LED lamp bead 5 to emit light, the PLC controller 4 decodes the control signal in the carrier power and sends the control instruction to the main control IC30 of the constant current driving power supply 3, and the main control IC30 adjusts the output current of the constant current driving power supply 3 according to the control instruction, so as to realize the light emission control of the LED lamp bead 5.

The utility model discloses a control source is to the wireless transmission control signal of PLC signal converter, again by PLC signal converter with control signal loading to the power line, through the power line to a plurality of lighting module conveying control signal simultaneously, because PLC signal converter passes through power line carrier transmission signal between a plurality of lighting module at most, do not have the condition that a plurality of lighting module received the data package inconsistent, a plurality of lighting module's the control uniformity of adjusting luminance is good, simultaneously, need not lay extra control scheme, the wiring is simple.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a PLC intelligence lighting control system which characterized in that: the LED lamp comprises a control source for sending a control signal, a PLC signal converter for receiving the control signal and outputting carrier power, wherein the carrier power is output to a plurality of lighting modules, each lighting module comprises a constant-current driving power supply and a PLC controller which are connected to the PLC signal converter in parallel, and an LED lamp bead connected to the constant-current driving power supply, the constant-current driving power supply comprises a rectification filter circuit, the input end of the rectification filter circuit is connected to a zero-live line of the carrier power, the output end of the rectification filter circuit is connected to an IC power supply circuit, the output end of the IC power supply circuit is connected to a main control IC, the output end of the main control IC is connected to a constant-current driving circuit, and; the output end of the PLC controller is connected to the main control IC, and the PLC controller decodes the PLC signal in the carrier power and outputs the PLC signal to the main control IC.

2. The PLC intelligent lighting control system of claim 1, wherein: the master control IC comprises a chip power supply pin, a chip grounding pin, an analog dimming signal input pin, a pulse width modulation signal input pin and a driving signal output pin; the rectification filter circuit comprises a patch bridge stack and a first capacitor connected to the output end of the patch bridge stack, and the output end of the rectification filter circuit comprises a positive output end and a ground end; the IC power supply circuit comprises a first resistor connected with the positive electrode output end of the rectification filter circuit, the first resistor is connected to a grounding end through a second capacitor, and a power supply pin of the master control IC is connected between the first resistor and the second capacitor; the lighting driving circuit comprises an MOS tube and a current transformer, wherein the grid electrode of the MOS tube is connected to a driving signal output pin of the main control IC, and the source electrode of the MOS tube is connected to a grounding end; the input end of the current transformer is respectively connected to the positive output end of the rectifying and filtering circuit and the drain electrode of the MOS tube, and the output end of the current transformer is connected to the LED lamp bead; the PLC controller comprises a differential positive end, a differential auxiliary end, a first output pin and a second output pin, wherein the first output pin and the second output pin are respectively connected to an analog dimming signal input pin and a pulse width modulation signal input pin of the master control IC, and the analog dimming signal input pin is connected to a ground terminal through a fifth capacitor; the differential positive end and the differential secondary end are respectively connected to the output end of the transformer, one input end of the transformer is directly connected to a zero line and a live line of the carrier power line, and the other input end of the transformer is connected to the zero line and the live line of the carrier power line through a sixth capacitor.

3. The PLC intelligent lighting control system of claim 2, wherein: the master control IC also comprises a feedback signal sampling pin, a loop compensation pin and a primary side current sampling pin; the IC power supply circuit also comprises a second resistor, a third resistor and an energy storage inductor, wherein the second resistor and the third resistor are connected in series, the energy storage inductor is connected with the second resistor and the third resistor in parallel, one end of the second resistor, one end of the third resistor and one end of the energy storage inductor are connected to a grounding end, and the other end of the second resistor, one end of the third resistor and one end of the energy storage inductor are connected between the first resistor and the second capacitor through a first; a feedback signal sampling pin of the master control IC is connected between the second resistor and the third resistor, and a loop compensation pin is connected to a ground terminal through a third capacitor; the primary side current sampling pin of the master control IC and the source electrode of the MOS tube of the lighting drive circuit are connected to a grounding end through a fourth resistor; the input end of the current transformer is also connected with an RC parallel circuit and a second reverse diode connected with the RC parallel circuit in series; the output end of the current transformer is connected with a forward diode and a fourth capacitor in series, and the LED lamp beads are connected with the fourth capacitor in parallel.