KR20110116342A - Self-diagnosis circuit for lightening system and self-diagnosis method using thereof - Google Patents

Abstract

The present invention relates to a self-diagnosis circuit for a lighting device and a self-diagnosis method using the same. The present invention provides a switching mode power supply (SMPS), the first drive power supply for supplying power to the first and second LED light of the LED light; A first PLC terminal configured to control the first driving power supply device by supplying voice and data to a high frequency signal through a power line supplying power as a power line communication terminal provided in the first driving power supply device; A second driving power supply for supplying power to a third LED light among LED lights by a switching mode power supply (SMPS); A third PLC terminal configured to control the second driving power supply device by supplying voice and data to a high frequency signal through a power line supplying power through a power line communication terminal provided in the second driving power supply device; The first driving power supply device, the second driving power supply device and the LED are received by receiving the operation states of the first driving power supply device, the second driving power supply device and the LED lighting through the first and third PLC terminals. A self-diagnosis circuit unit generating a failure occurrence signal when a failure occurs in the lighting; And inserting a first resistor in series with the first driving power supply connected thereto, and normally, turning on a relay switch to supply power to the LED light without passing through the first resistor to prevent loss due to resistance. LED lighting to turn off the relay switch only when checking whether there is an abnormality of slave lighting devices, and to determine whether to operate by generating a voltage between the resistors caused by the LED lighting load. .

Description

Self-Diagnosis Circuit For Lightening System and Self-Diagnosis Method using Thereof}

The present invention relates to a lighting device technology, and more specifically, to control or direct a plurality of lights from a single main controller for controlling landscape lighting or plant growth lighting, for this purpose, a separate LED lighting device The present invention relates to a self-diagnosis system and a self-diagnosis method using the same for a lighting device capable of confirming the operation of a lighting device using a current consumption driven by an LED device without equipment.

The LED lighting device is used to produce landscape lighting or to grow plants, etc., by irradiating light to objects through light emitting LEDs provided therein.

That is, the above landscape lighting is not continuously produced by the lighting director in real time on the stage, and is set and used to be automatically produced for a predetermined time as needed, and the displayed contents of the landscape lighting and the driven light emitting LED There is a case that it is driven without recognizing the abnormality of a specific element.

In addition, if a conventional LED lighting device needs to control color or light quantity remotely, such as landscape lighting or plant lighting, many lighting devices are configured and installed in one main controller, but the central center for controlling the lighting device is provided. In this case, it is not possible to check whether each of the lights is operating normally or whether the LED lighting device is disconnected and driven. Therefore, the user has to check the abnormality of the corresponding LED lighting device and check the trouble part and take action.

In order to solve the above problems, the obstacles can be solved by wiring two-way communication lines for the corresponding LED lighting devices, but in this case, the unit cost increases in the construction of the two-way communication lines in the LED lighting devices, and overcurrent, etc. Due to the large number of failures and a lot of installation costs were disadvantages.

In order to solve the above problems, in the field of LED lighting device technology such as landscape lighting or plant growth lighting, it is necessary to check the operation of each lighting device using current consumption of the LED light emitting device without any additional equipment. Technology development is required.

The present invention is to solve the above problems, the consumption is driven in the LED device without additional equipment in the LED lighting device for controlling or directing a plurality of lights in one main controller for controlling the landscape lighting, plant growth lighting, etc. It is to provide a self-diagnosis system and a self-diagnosis method using the same for a lighting device that can determine the operation of the lighting device using the current.

In addition, the present invention is to provide a self-diagnosis system and a self-diagnostic method using the same for a lighting device for easy and simple recognition of the failure of the lighting device.

However, the objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

According to a first aspect of the present invention for achieving the above object, a first mode for supplying power to the first LED light and the second LED light of the LED lighting switching mode power supply (SMPS) Power supply; A first PLC terminal configured to control the first driving power supply device by supplying voice and data to a high frequency signal through a power line supplying power as a power line communication terminal provided in the first driving power supply device; A second driving power supply for supplying power to a third LED light among LED lights by a switching mode power supply (SMPS); A third PLC terminal configured to control the second driving power supply device by supplying voice and data to a high frequency signal through a power line supplying power through a power line communication terminal provided in the second driving power supply device; The first driving power supply device, the second driving power supply device and the LED are received by receiving the operation states of the first driving power supply device, the second driving power supply device and the LED lighting through the first and third PLC terminals. A self-diagnosis circuit unit generating a failure occurrence signal when a failure occurs in the lighting; And inserting a first resistor in series with the first driving power supply connected thereto, and normally, turning on a relay switch to supply power to the LED light without passing through the first resistor to prevent loss due to resistance. The LED lighting unit for turning off the relay switch only when checking whether there is an abnormality of the slave lighting devices and determining whether to operate by generating a voltage between the resistors caused by the LED lighting load. Provide a diagnostic system.

In this case, according to an additional feature of the present invention, the LED lighting unit is formed in a structure connected to the terminal (DC +) of the first driving power supply to supply or cut off power from the first driving power supply to the LED lighting. A relay switch which is a switch for performing; First resistors connected in parallel with both terminals of the relay switch; Both terminals connected in parallel with the relay switch and the first resistor are respectively input to the second terminal (-) and the third terminal (+), and the output is formed to be connected to the AD converter, thereby differentially applying signals applied to the two input terminals. A differential amplifier which is an amplifier to amplify; A main CPU that checks an operating state of the first driving power supply device, the second driving power supply device, and the LED lighting, and generates a failure signal and transmits the failure signal to an external terminal when a failure occurs; And a power line communication terminal provided in the main CPU to control the first driving power supply by loading voice and data on a high frequency signal through a power line connected to the first PLC terminal to supply power. A second PLC terminal which is a unit for; It is preferable to include.

In addition, according to an additional feature of the invention, the main CPU, the power supply terminal (1), GP5 (2), GP4 (3), GP3 (4), GP2 (5), GP1 (6) and ground terminal ( A control chip comprising 7); A first RED diode connected between an external power supply Vcc and an input terminal of the second RED diode; The second RED diode connected between the output terminal of the first RED diode and the collector of the first transistor; The first transistor having a base connected to GP1 (6) of the control chip, a collector connected to an output terminal of the second RED diode, and an emitter connected to ground; A first GREEN diode connected between the external power supply Vcc and an input terminal of the second GREEN diode; A second GREEN diode connected between the output terminal of the first GREEN diode and the collector of the second transistor; A second transistor having a base connected to the GP2 (5) of the control chip, a collector connected to an output terminal of the second GREEN diode, and an emitter connected to ground; A first BLUE diode connected between the external power source Vcc and an input terminal of the second BLUE diode; The second BLUE diode connected between an output terminal of the first BLUE diode and a collector of a third transistor; The third transistor having a base connected to the GP3 (4) of the control chip, a collector connected to an output terminal of the second BLUE diode, and an emitter connected to ground; A second resistor formed of a sphere connected to the external power supply and a collector of a fourth transistor; A fourth transistor formed between the second resistor and ground; And an AD converter connected to an output terminal of the differential amplifier and outputting an output signal to the main CPU 80. It is preferable that the second resistor and the fourth transistor comprises a slave state return circuit.

According to a second aspect of the present invention for achieving the above object, a first mode for supplying power to the first LED light and the second LED light of the switching mode power supply (SMPS), LED lighting Power supply; A first PLC terminal configured to control the first driving power supply device by supplying voice and data to a high frequency signal through a power line supplying power as a power line communication terminal provided in the first driving power supply device; A second driving power supply for supplying power to a third LED light among LED lights by a switching mode power supply (SMPS); A third PLC terminal configured to control the second driving power supply device by supplying voice and data to a high frequency signal through a power line supplying power through a power line communication terminal provided in the second driving power supply device; And a self-diagnosis circuit section. A self-diagnostic method using a self-diagnosis system for a lighting apparatus, comprising: a first step of determining whether the main CPU is in an inspection mode and turning off all LED lights in an inspection mode; A second step of the main CPU executing an off command for all of the driving power supplies except for the driving power supplies connected thereto; A third step of the main CPU turning off the relay switch and setting an address to 0; A fourth step of the main CPU transmitting an ON command to the red, blue, and green LEDs of the LED lights; The main CPU. As a result of determining whether the current consumption is normal, if the current consumption is not normal, the main CPU 80 records the current address. If the current consumption is normal, the main CPU 80 determines whether the current address is the last address. A fifth step of increasing 1; And a sixth step of determining, by the main CPU, whether the current address is the last address, whether there is an error, and if there is no error, starting normal lighting, and performing an error processing routine when there is an error. A sixth step comprising a; To provide a self-diagnostic method using a lighting device comprising a.

Self-diagnosis system for a lighting device and a self-diagnostic method using the same according to an embodiment of the present invention has the effect of checking the operation of the lighting device using the current consumption driven in the LED element without any additional equipment to the LED lighting device. to provide.

In addition, the present invention can control a plurality of lights from one main controller for the control of landscape lighting, plant growth lighting, etc. provides an effect that can easily and easily recognize the failure to solve the fast obstacles.

1 is a view showing a self-diagnosis system including a self-diagnosis circuit for a lighting apparatus according to an embodiment of the present invention.
2 is a circuit diagram showing a circuit of each LED lighting of the LED lighting of FIG.
3 is a view showing a state in which a plurality of self-diagnosis system including a self-diagnosis circuit for a lighting apparatus according to an embodiment of the present invention is connected.
4 is a flowchart illustrating a self-diagnosis method using a self-diagnosis circuit for a lighting apparatus according to an embodiment of the present invention.

Hereinafter, a detailed description of a preferred embodiment of the present invention will be described with reference to the accompanying drawings. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted when it is deemed that they may unnecessarily obscure the subject matter of the present invention.

In the present specification, when one component 'transmits' data or a signal to another component, the component may directly transmit the data or signal to another component, and through at least one other component. This means that data or signals can be transmitted to other components.

1 is a view showing a self-diagnosis system 1 including a self-diagnosis circuit for a lighting apparatus according to an embodiment of the present invention. FIG. 2 is a circuit diagram illustrating a circuit of each LED light of the LED light 130 of FIG. 1. 1 and 2, a self-diagnosis system 1 including a self-diagnosis circuit for an illumination device includes a first drive power supply device 10, a first PLC terminal 20, a relay switch 30, First resistor 40, differential amplifier 60, second PLC terminal 70, main CPU 80, AD converter 90, self-diagnostic circuit section 50, second drive power supply 110, first 2 PLC terminal 120 and LED lighting unit 130 is included.

The first driving power supply device 10 is a switching mode power supply (SMPS), which converts AC power supplied from commercial power to various devices such as computers, communication devices, and home appliances. Modular power supply.

The first driving power supply device 10 performs intermittent control at a high frequency by using a high-speed power semiconductor and obtains stable DC voltages through rectification and smoothing circuits. The first driving power supply device 10 supplies power to the first and second LED lights of the LED lighting unit 130.

The first PLC terminal 20 is a power line communication terminal provided in the first driving power supply device 10. The first driving power supply device carries voice and data on a high frequency signal through a power line for supplying power. 10 is a unit for controlling. The power line communication used in the first PLC terminal 20 is spreading to home networking solutions such as those used in home appliances, lighting equipment, air conditioning and home security system control in the medium / low speed field, In the high-speed field, the development of ultra-high speed technology exceeding 10 Mbps is developing the superiority and necessity of power line communication.

The self-diagnosis circuit unit 50 is formed to include a relay switch 30, a first resistor 40, a differential amplifier 60, a second PLC terminal 70, the main CPU 80 and the AD converter 90. .

The relay switch 30 is a switch connected to the terminal DC + of the first driving power supply device 10 to supply or cut off power from the first driving power supply device 10 to the LED lighting 130. .

The first resistor 40 is connected in parallel with both terminals of the relay switch 30.

The differential amplifier 60 has a structure in which both terminals of the relay switch 30 and the first resistor 40 are respectively input to the second terminal (-) and the third terminal (+), and the output is connected to the AD converter 90. And an amplifier for amplifying a signal applied to two input terminals.

A circuit in which two transistor emitters are used as an input terminal of the differential amplifier 60 is used, and a bias circuit is provided at the base so that it can be used as a zero potential, and a power supply is often used in two kinds. In the differential amplifier 60, since the output is zero with respect to a signal simultaneously applied to two input terminals, if the characteristics of the two transistors Q1 and Q2 are correct, the variation of the bias due to a temperature change or the like does not appear on the output. Therefore, differential amplifiers are often used in integrated circuits suitable for realizing DC amplifiers and difficult to form large capacitors, and op amps are also used as differential amplifiers.

The second PLC terminal 70 is a power line communication terminal provided in the main CPU 80. The second PLC terminal 70 is a high-frequency signal that transmits voice and data through a power line connected to the first PLC terminal 20 to supply power. It is a unit for controlling the 1st drive power supply device 10 mounted in the.

The main CPU 80 checks the operating states of the first driving power supply device 10, the second driving power supply device 110, and the LED light 130, and generates a failure signal to generate an external terminal when a failure occurs. To send.

The AD converter 90 is connected to the output terminal of the differential amplifier 60 and outputs an output signal to the main CPU 80.

The second driving power supply 110 is a switching mode power supply (SMPS), which converts AC electricity supplied from commercial power to suit various devices such as computers, communication devices, and home appliances. Modular power supply. The second driving power supply 110 performs intermittent control at a high frequency using a high speed power semiconductor and obtains various DC voltages that are stable through rectification and smoothing circuits. The second driving power supply 110 supplies power to the third LED light of the LED lighting unit 130.

The third PLC terminal 120 is a power line communication terminal provided in the second driving power supply 110. The second driving power supply unit carries voice and data on a high frequency signal through a power line for supplying power. A unit for controlling 110.

The LED light 130 emits light based on the driving power supplied from the first driving power supply device 10 and the second driving power supply device 110 to illuminate the set area.

In the above configuration, configuring the PLC terminals 20 and 120 in the plurality of driving power supply devices 10 and 110 is to check the flow of current during the operation of the LED device by the shunt resistor present in the main CPU 80. By configuring the first PLC terminal 20 at the front end of the first driving power supply device 10, the driving power supply device 10 configured in parallel is turned off, so that the current consumption of the LED element is applied to the shunt resistor in the main CPU 80. In order to turn off the power supply except for the main drive power supply, PLC terminal is configured in each power supply and used for control communication.

Referring to FIG. 2, the LED lighting unit 130 includes a control chip 210, a first RED diode 220 (D1), a second RED diode 230 (D2), a first transistor 240 (Q1), and a first green. Diode 250 (D3), second GREEN diode 260: D4, second transistor 270: Q2, first BLUE diode 280: D5, second BLUE diode 290: D6, third transistor ( 300 includes Q3), a second resistor 310: R2, and a fourth transistor 320: Q4.

The control chip 210 includes a power supply terminal 1, a GP5 (2), a GP4 (3), a GP3 (4), a GP2 (5), a GP1 (6), and a ground terminal (7).

The first RED diode 220 D1 is connected between an external power supply Vcc and an input terminal of the second RED diode 230.

The second RED diode 230 (D2) is connected between the output terminal of the first RED diode 220 and the collector of the first transistor 240.

The first transistor 240 (Q1) has a base connected to the GP1 (6) of the control chip 210, the collector is connected to the output terminal of the second RED diode 230 (D2), the emitter is connected to the ground structure Is formed.

The first GREEN diode 250 (D3) is connected between an external power supply Vcc and an input terminal of the second GREEN diode 260.

The second GREEN diode 260 (D4) is connected between the output terminal of the first GREEN diode 250 and the collector of the second transistor 270.

The second transistor 270 Q2 has a base connected to the GP2 5 of the control chip 210, a collector connected to the output terminal of the second GREEN diode 260, D4, and an emitter connected to ground. Is formed.

The first BLUE diode 280 (D5) is connected between the external power source Vcc and the input terminal of the second BLUE diode 290.

The second BLUE diode 290 (D6) is connected between the output terminal of the first BLUE diode 280 and the collector of the third transistor 300.

The third transistor 300 (Q3) has a base connected to the GP3 (4) of the control chip 210, the collector is connected to the output terminal of the second BLUE diode (290: D6), the emitter is connected to the ground structure Is formed.

The second resistor 310 (R2) is formed as a sphere connected to the external power source Vcc and the collector of the fourth transistor 320. The fourth transistor 320 (Q4) is formed between the second resistor 310 and the ground terminal. The second resistor 310 and the fourth transistor 320 form a slave state return circuit.

According to the above configuration, the first resistor 40 is configured in series with the first driving power supply device 10 connected to the main CPU 80, and the relay switch 30 is normally turned ON. 1 Power is supplied through the resistor 40 to prevent power loss due to the resistor 40, and when the slave lighting apparatus is abnormal, the relay switch 30 is turned off and the lighting load is turned off. The voltage between both ends of the resistor 40 is generated to determine whether to operate.

More specifically, the self-diagnosis method of the lighting apparatus according to the present invention, the current consumption by the LED element in the lighting device in the slave in the main CPU 80, the generated current consumption between the both ends of the first resistor (40) The power generated by using the differential amplifier 600 is detected by the voltage generated in the LED device can be determined to operate normally.

Then, by checking the operation of the other slave lighting device to display the location where the failure occurs in the main CPU (80) to display on the display unit (not shown) for easy repair, remove the portion that does not operate when directed The operation command is made to allow the minimum direction by the defect.

Without adding a special function to the LED lighting unit 130 as described above, it is to check whether the operation of each LED lighting unit 130 by simply using the current consumption driven by the LED device.

In addition to the on / off operation of the R, G, and B LED elements using the above-described circuit, the main CPU 80 can return the information through the fourth transistor 320 (Q4) of the slave circuit diagram.

In addition, in FIG. 2, when the R, G and B LED elements are turned on, the respective R, G and B are driven through whether the corresponding LED elements are turned on to generate respective consumption currents. In this case, the state of the slave state return circuit may be configured to transfer the amount of current generated by applying a current consumption to the second resistor 310 (R2) to the main CPU 80 to provide the slave state return circuit. Status information can be recognized.

Examples of detection methods are as follows. That is, when the current consumption of the LED lighting unit 130 is 30W (I = 0.6A), R = 10W (I = 0.2A), B = 10W (I = 0.2A), G = 10W (I = 0.2) It is assumed that the standby current of the LED lighting unit 130 is 1W (10mA), the power supply voltage is 24V, and the resistance first resistor 40 (R1) for current sensing is 1ohm.

When Red is normally turned on (200 mA flows), the voltage generated at the first resistor 40 (R1) is 1 ohm * 0.2A = 0.2V by the Ohm's law of I = V / R. Since 0.2V is generated as shown in the above formula, amplifying this by 10 times using the differential amplifier 60 results in 2V, so that the main CPU 80 can be easily distinguished when it is operated and when it is not operated.

Like this, it is normal if 600mA is consumed by lighting R, G, and B at the same time. If 200mA and 400mA are consumed, it is possible to find out what is causing problems by lighting R, G, and B sequentially.

When the LED device does not operate, the voltage applied to the first resistor (40: R1) is 1 ohm * 0.01A = 0.01V, which generates 0.01V as shown in the above formula. Since it is 0.1V, the main CPU 80 can easily distinguish between the operation and the operation.

Such a self-diagnosis system 1 including a self-diagnosis circuit for an illumination device can also be used for plant growth lighting.

3 is a view showing a state in which a plurality of self-diagnosis system 1 including a self-diagnosis circuit for a lighting apparatus according to an embodiment of the present invention is connected. 1 to 3, two self-diagnosis system 1 including a self-diagnosis circuit for an illumination device is formed, and between the LED lighting unit 130, the main CPU 80 is added. Indicates.

That is, when several driving power supplies are connected to one main CPU 80, the circuit may measure current consumption of each driving power supply.

4 is a flowchart illustrating a self-diagnosis method using a self-diagnosis circuit for a lighting apparatus according to an embodiment of the present invention. 1 to 4, it is determined whether the main CPU 70 is in the test mode (S1).

If the determination result of the step (S1) is not in the test mode, the main CPU 70 starts to direct the LED light 130 (S3).

On the other hand, in the determination mode of step S1, the main CPU 70 turns off all the LED lights (S4).

Thereafter, the main CPU 70 performs an off command for the driving power supply (S5). The main CPU 80 turns off the power of all power sources other than the outside connected to itself by using power line communication.

Thereafter, the main CPU 80 turns off the main relay switch 30 and sets the address address to 0 (S6). That is, address address is initialized in current consumption mode.

Thereafter, the main CPU 80 sets the address to 1 (S7) and transmits an ON command to the red, blue, and green LEDs (S8). That is, the lighting command or the simultaneous lighting command is sequentially transmitted to the red, blue, and green LEDs.

Accordingly, the main CPU 80 determines whether the current consumption is normal (S9).

As a result of the determination in step S9, when the current consumption is not normal, the main CPU 80 records the current address (S10).

On the other hand, if the current consumption is normal as a result of the determination in step S9, the main CPU 80 determines whether the current address is the last address (S11). As a result of the determination in step S11, if it is not the last address, the flow returns to step S7.

On the other hand, as a result of the determination in step S11, in the case of the last address, the main CPU 80 determines whether or not an error (S12).

As a result of the determination in step S12, if there is no error, the main CPU 80 starts normal lighting production (S14).

On the other hand, if there is an error as a result of the determination in step S12, the main CPU 80 performs an error processing routine (S13).

As described above, the specification and the drawings have been described with respect to the preferred embodiments of the present invention, although specific terms are used, it is only used in a general sense to easily explain the technical contents of the present invention and to help the understanding of the invention. It is not intended to limit the scope of the present invention. It will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be carried out in addition to the embodiments disclosed herein.

10: first driving power supply device 20: first PLC terminal
30: relay switch 40: first resistance
50: self-diagnosis circuit 60: differential amplifier
70: 2nd PLC terminal 80: main CPU
90: AD converter 110: second drive power supply
120: second PLC terminal 130: LED lighting unit
210: control chip 220: first RED diode
230: second RED diode 240: first transistor
250: First GREEN Diode 260: Second GREEN Diode
270: second transistor 280: first BLUE diode
290: second BLUE diode 300: third transistor
310: second resistor 320: fourth transistor

Claims (5)

A switching mode power supply (SMPS), the first drive power supply for supplying power to the first and second LED light of the LED light;
A first PLC terminal configured to control the first driving power supply device by supplying voice and data to a high frequency signal through a power line supplying power as a power line communication terminal provided in the first driving power supply device;
A second driving power supply for supplying power to a third LED light among LED lights by a switching mode power supply (SMPS);
A third PLC terminal configured to control the second driving power supply device by supplying voice and data to a high frequency signal through a power line supplying power through a power line communication terminal provided in the second driving power supply device;
The first driving power supply device, the second driving power supply device and the LED are received by receiving the operation states of the first driving power supply device, the second driving power supply device and the LED lighting through the first and third PLC terminals. A self-diagnosis circuit unit generating a failure occurrence signal when a failure occurs in the lighting; And
Inserting a first resistor in series with the first driving power supply connected to itself, the relay switch is normally turned on (ON) to supply power to the LED light without passing through the first resistor to prevent loss by resistance, An LED lighting unit which turns off the relay switch only when checking whether there is an abnormality of slave lighting devices, and generates a voltage between resistances of the LED lighting loads to determine whether to operate; Self-diagnosis system for a lighting device comprising a.
The method of claim 1, wherein the LED lighting unit,
A relay switch which is formed in a structure connected to the terminal (DC +) of the first driving power supply and is a switch for supplying or cutting off power from the first driving power supply to the LED light;
First resistors connected in parallel with both terminals of the relay switch;
Both terminals connected in parallel with the relay switch and the first resistor are respectively input to the second terminal (-) and the third terminal (+), and the output is formed to be connected to the AD converter, thereby differentially applying signals applied to the two input terminals. A differential amplifier which is an amplifier to amplify;
A main CPU that checks an operating state of the first driving power supply device, the second driving power supply device, and the LED lighting, and generates a failure signal and transmits the failure signal to an external terminal when a failure occurs; And
A power line communication terminal provided in the main CPU for controlling the first driving power supply by loading voice and data on a high frequency signal through a power line connected to the first PLC terminal to supply power. A second PLC terminal which is a unit; Self-diagnosis system for a lighting apparatus comprising a.
The method of claim 2, wherein the main CPU,
A control chip including a power supply terminal 1, a GP5 (2), a GP4 (3), a GP3 (4), a GP2 (5), a GP1 (6), and a ground terminal (7);
A first RED diode connected between an external power supply Vcc and an input terminal of the second RED diode;
The second RED diode connected between the output terminal of the first RED diode and the collector of the first transistor;
The first transistor having a base connected to GP1 (6) of the control chip, a collector connected to an output terminal of the second RED diode, and an emitter connected to ground;
A first GREEN diode connected between the external power supply Vcc and an input terminal of the second GREEN diode;
A second GREEN diode connected between the output terminal of the first GREEN diode and the collector of the second transistor;
A second transistor having a base connected to the GP2 (5) of the control chip, a collector connected to an output terminal of the second GREEN diode, and an emitter connected to ground;
A first BLUE diode connected between the external power source Vcc and an input terminal of the second BLUE diode;
The second BLUE diode connected between an output terminal of the first BLUE diode and a collector of a third transistor;
The third transistor having a base connected to the GP3 (4) of the control chip, a collector connected to an output terminal of the second BLUE diode, and an emitter connected to ground;
A second resistor formed of a sphere connected to the external power supply and a collector of a fourth transistor;
A fourth transistor formed between the second resistor and ground; And
An AD converter connected to an output terminal of the differential amplifier and outputting an output signal to the main CPU 80; Including;
And the second resistor and the fourth transistor form a slave status return circuit.
The self-diagnostic system according to any one of claims 1 to 3, comprising a self-diagnostic circuit for the lighting device,
Self-diagnosis system using a self-diagnosis system for a lighting device, characterized in that used for plant growth lighting.
A switching mode power supply (SMPS), the first drive power supply for supplying power to the first and second LED light of the LED light; A first PLC terminal configured to control the first driving power supply device by supplying voice and data to a high frequency signal through a power line supplying power as a power line communication terminal provided in the first driving power supply device; A second driving power supply for supplying power to a third LED light among LED lights by a switching mode power supply (SMPS); A third PLC terminal configured to control the second driving power supply device by supplying voice and data to a high frequency signal through a power line supplying power through a power line communication terminal provided in the second driving power supply device; The first driving power supply device, the second driving power supply device and the LED are received by receiving the operation states of the first driving power supply device, the second driving power supply device and the LED lighting through the first and third PLC terminals. A self-diagnosis circuit unit generating a failure occurrence signal when a failure occurs in the lighting; And inserting a first resistor in series with the first driving power supply connected thereto, and normally, turning on a relay switch to supply power to the LED light without passing through the first resistor to prevent loss due to resistance. And an LED lighting unit which turns off the relay switch only when checking whether there is an abnormality of the slave lighting devices and determines whether to operate by generating a voltage between both ends of the resistance caused by the LED lighting load. In the self-diagnosis method using a self-diagnosis system for the device,
Determining whether the main CPU is in the test mode, and turning off all LED lights in the test mode;
A second step of the main CPU executing an off command for all of the driving power supplies except for the driving power supplies connected thereto;
A third step of the main CPU turning off the relay switch and setting an address to 0;
A fourth step of the main CPU transmitting an ON command to the red, blue, and green LEDs of the LED lights;
The main CPU. As a result of determining whether the current consumption is normal, if the current consumption is not normal, the main CPU 80 records the current address. If the current consumption is normal, the main CPU 80 determines whether the current address is the last address. A fifth step of increasing 1; And
A sixth step of the main CPU, if the current address is the last address, determining whether there is an error, if there is no error, starting normal lighting, and performing an error processing routine when there is an error; A sixth step comprising a; Self-diagnostic method using a self-diagnosis system for a lighting device comprising a.

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