KR20220001934A - LED signal module control device - Google Patents

Abstract

The present invention relates to an LED signal module control device, and more particularly, to an LED signal module control device using DTMFC or FSK MODEM as transmission and reception control signal codes to control 2-lamp, 3-lamp 3-display or 4-display, and 4-lamp 5-display signal with 2-wire.

Description

LED signal module control device

The present invention relates to a device for controlling an LED signal module, and more particularly, a transmission and reception control signal code for controlling a 2 light type, 3 light type 3 light or 4 light type, and 4 light type 5 light type signal signal with 2 wires is DTMFC (Dual Tone) It relates to an LED signal module control device using Multi Frequency Code) or FSK (Frequency Shift Keying) MODEM.

In the past, power was directly applied to the LED signal to be displayed through a current detection relay and the current was checked to monitor and control the current state of the LED signal.

This made the operation of the LED signal unstable by adding an unreasonable circuit to the original purpose of the LED signal by designing the circuit according to the operating conditions of the current detection relay.

In order to match the current detection characteristics of the current detection relay, a separate dummy load circuit that satisfies an absurd current value compared to the current required to drive the LED was constructed, resulting in unnecessary power consumption.

Irrespective of the basic operation of the LED signal, heat generation of the LED signal is generated, which affects the durability and reliability of the LED signal, and becomes an obstacle.

In addition, when the power supply line becomes longer, the voltage applied to the LED signal decreases according to the line resistance. If an overcurrent required for the operation of the current detection relay flows, the voltage applied to the LED signal becomes lower and the minimum voltage required for the starting operation of the LED signal. The LED signal is not reached, and the display is unstable or cannot be displayed, resulting in signal failure.

Meanwhile, Korean Patent Application Laid-Open No. 2015-0071991, which is a conventional invention, is a two-light five-light LED (light emitting diode) signal system, wherein the two-light five-light LED signal system includes a processor, and the processor is configured according to the movement of the track section of the train. When the first two-light five-light LED signal is set as a stop signal, and the first two-light five-light LED signal is changed to the stop signal, the second two-light five-light LED signal is a warning signal, and the third two-light five-light LED signal is a warning signal. It is implemented so that the LED signal is set to have a caution signal, the fourth two-light type five display LED signal unit has a deceleration signal, and the fifth secondary light type five display LED signal unit has a progress signal, wherein the two-light type five display LED signal unit includes the first LED and the first LED signal. Operation of a two-light five-light LED signal that is implemented based on 2 LEDs and that the first LED and the second LED are set to one of green, yellow, and red colors and off according to the signal of the two-light type five-light LED signal provide the system.

However, in the above-described configuration, the proper consumption current is increased, so that the heat generation of the signal module increases, and the durability is deteriorated due to electrical instability.

In addition, Korean Patent Application Laid-Open No. 2015-0071992 discloses a single-light three-light LED (light emitting diode) signal system, wherein the single-light three-light LED system includes a processor, and the processor includes a first single light according to movement of a track section of a train. When the type 3 light LED signal is set as a stop signal and the first single light type 3 light LED signal is changed to the stop signal, the second single light type 3 light LED signal is a caution signal, and the third single light type 3 light type LED signal unit is a warning signal. is implemented to be set to have a progress signal, the single-light type three-display LED signal is implemented based on one LED, and the one LED is displayed as one of a green signal, a yellow signal and a red signal, The green signal is a progress signal, the yellow signal is the caution signal, and the red signal is the stop signal.

However, the above-described configuration also has a problem that the proper consumption current is increased, so that the signal module heats up, and the durability is deteriorated due to electrical instability.

In addition, there is a problem in that it is difficult to repair the malfunction by immediately monitoring the operation status of the signal and when a failure occurs.

Korean Patent Publication No. 2015-0071991 Korean Patent Publication No. 2015-0071992 Korea Registered Utility No. 0307615

The present invention was made to solve the above problems, and it is possible to control the 2nd light type, 3 light type 3/4 display and 4 light type 5 display signals with 2 wires, and the operating current (400 ~ 500mA) / holding current (200 ~ 300mA) ) operation is unnecessary, so an object of the present invention is to provide an LED signal module control device with a small appropriate current consumption (50-100mA or less).

In addition, the present invention has a mutual operation check function, and it is an object to provide an LED signal module control device capable of reliable operation and failure detection in comparison with the conventional single-core detection method by the current detection relay.

In addition, the present invention uses a DTMF (Dual Tone Multi Frequency) or FSK (Frequency Shift Keying) MODEM communication method whose reliability has been verified. 1) Single (Y, R, G) or a plurality of (Y-Y1) signals at the same time during signal display ON/OFF function, 2) single signal or multiple signals arbitrarily selected lighting or blinking function, 3) LED signal module capable of realizing signal failure and status (30% or 50%, ALL-OFF) information transmission/reception function An object of the present invention is to provide a control device.

In order to solve the above problems, the present invention is an LED signal module control device, the transmit and receive control signal codes are DTMFC or FSK for controlling the 2 light type, 3 light type 3 light or 4 light type, and 4 light type 5 display signal with 2 wires. (Frequency shift keying) Use MODEM.

The signal and power coupling transformer consists of 600Ω/1 winding on the primary side and 300Ω/2 windings on the secondary side, and the primary side 600Ω winding is used for combining DTMF or FSK MODEM control signals, so a coil with a small diameter is used. , the secondary 300Ω two windings supply power to the LED signal in the occlusion device, and receive the DTMF or FSK MODEM control signal current and the operating power of the LED signal, which is the operating power of the LED signal rather than the primary winding. Use a coil with a larger diameter than the primary 600Ω winding that can pass DC current.

When +DC50V is supplied from the occlusion device side occlusion signal power supply of the LED signal module control device and applied to the 7th pin of T1 through the rectifier diode D2-D1, the 8th pin of T1 connected to C1 is DC due to the characteristics of the capacitor. As the component is blocked, the current is outputted along the 300Ω winding of No. 6 and No. 7 of T1 to No. 6 of T1, and signal power +DC50V is transmitted to the LED signal.

The +DC50V returned through the LED signal returns to -DC50V of the occluded signal power supply through the 300Ω winding of the 9th and 8th pins of T1 to form a current supply loop of the LED signal operating power, and the T1 Capacitor C1 connected to pin 7 and pin 8 is AC-coupled with windings 6-7 and 8-9 of T1 to form 600Ω primary and secondary 300Ω-300Ω side of T1 with AC component DTMF or The FSK MODEM control signal is mutually transmitted, and the DC component, which is the operating power of the LED signal, plays a role in isolating, and when the power supply loop is configured normally, two OP- By a hybrid circuit composed of AMP, the signal for controlling the LED signal composed of DTMF or FSK MODEM to be transmitted from the occlusion device to the LED signal and the signal for status/control responded from the LED signal are separated, and the 1st pin of T1 is connected to the hybrid circuit and Pin 5 is connected to the ground supplied to the LED signal and the hybrid circuit ground for the control signal separated from the ground. The hybrid circuit for the control signal is composed of two independent OP-AMPs and is composed of 2, 3, 4 LED signal modules One is mounted in the box, and the two independent OP-AMPs are mounted separately as A-AMP and B-AMP on one 8-pin IC, and the DTMF received from the LED signal on the 6th and 9th pins of T1. Alternatively, the FSK MODEM control signal is induced in the winding of pin 1 of T1 and pin 5 that is grounded, and when a signal is transmitted to the (+) input pin of resistor R5 and A-AMP along pin 1, the other of resistor R5 On the other hand, the signal of the output pin of B-AMP is erased, and a specific signal is output to the output pin of A-AMP.

In the rectifier diode D2-D1, when +DC 50V passes through the LED signal and current flows normally, a certain voltage is dropped to the anode of D2 and the cathode of D1 connected in series. When the voltage becomes the LED operating voltage of the photocoupler PC1, the photocoupler Turn on the transistor of PC1 to confirm that the LED signal and the occlusion device are electrically connected.

The specific signal blocks the DC component, decodes the AC signal with a DTMF-decoder or FSK MODEM IC, and delivers it to the occlusion signal controller MPU, and the occlusion signal controller MPU analyzes the signal input from the DTMF-decoder IC or FSK MODEM. LED Beacon

Controls the LED signal module by grasping the status information of the module.

A dual-tone DTMF Audio or FSK MODEM Audio signal is generated in the DTMF generator IC or FSK MODEM using the data generated by the BCD code in the occlusion signal controller MPU.

When a dual-tone DTMF Audio or FSK MODEM Audio signal in which the DC component is blocked is input to the (+) input pin of the B-AMP, it is amplified as much as set by the resistance value connected to the GND, (+) input pin, and the output pin, When applied to pin 1 of T1 through resistor R5 (600Ω), DTMF or FSK MODEM control signal is transmitted as an AC component signal to pins 6 and 9 of T1.

The present invention made as described above With 2 wires, it is possible to control the 2nd, 3rd, 3/4, and 4th type 5 display signals, and the operating current (400~500mA)/holding current (200~300mA) operation is unnecessary, so the appropriate current consumption (50~100mA or less) ) is small, so the heat generation of the signal module is reduced, and various obstacles are reduced because it is electrically stable and durability is improved.

In addition, the control signal of the FSK (Frequency shift keying) MODEM according to the present invention does not have a separate designated code, and it can be freely designed as a signal (protocol) for controlling the LED signal module in the future.

1 is a diagram showing a DTMFC control signal table according to the present invention.
2 is a view showing a layout diagram of a DTMF dial key-pad of a wired telephone according to an LED signal module control device according to an embodiment of the present invention.
3 is a diagram showing the overall circuit of the LED signal module control device according to an embodiment of the present invention.
4 is a circuit diagram for explaining the operation of the circuit on the occlusion device side according to another embodiment of the present invention.
5 is a diagram of a signal box, a control signal, and a power supply matching circuit according to another embodiment of the present invention.

In order to fully understand the present invention, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention may be modified in various forms, and the scope of the present invention should not be construed as being limited to the embodiments described in detail below. This example is provided to more completely explain the present invention to those of ordinary skill in the art. Accordingly, the shapes of elements in the drawings may be exaggerated to emphasize a clearer description. It should be noted that the same members in each drawing are sometimes shown with the same reference numerals. In addition, detailed descriptions of well-known functions and configurations determined to unnecessarily obscure the gist of the present invention will be omitted.

Hereinafter, a control signal and a power supply circuit of the LED signal module control device according to the present invention will be described with reference to FIGS. 3 to 5 .

The present invention provides a signal (start signal A → signal number → signal ON or signal OFF → end signal B) sent from the occlusion device to the signal device and a signal from the signal device to the occlusion device (start signal C → signal number → signal status information → end signal) D) can be divided into

First, it is defined that the occlusion device side circuit and the LED signal side control signal and power combination circuit have the same configuration and the direction of the current is different.

The LED signal module is used for supplying the operating power (DC) and separating and combining (overlapping) the control signal (AC-Audio Frequency).

When the DTMFC according to the present invention is used as the control signal of the LED signal module, for example, one signal corresponds to each signal flag, such as 2, 3, 4, and 5, and is electrically isolated from other signal units. It should be (separated).

When the FSK MODEM according to the present invention is used as a control signal of the LED signal module, for example, each signal box such as 2, 3, 4, and 5 is connected in parallel and a plurality of signals are connected to two wires at the same time. can be controlled and operated.

That is, according to the FSK MODEM signal method used in the present invention, the number of signal boxes that can be controlled with two wires increases from one to several.

The signal and power coupling transformer consists of 600Ω/1 winding on the primary side and 300Ω/2 windings on the secondary side.

As the primary side 600Ω winding is used for combining DTMF or FSK MODEM control signals, a coil with a small diameter is used.

The secondary 300Ω two windings supply power to the LED signal in the occlusion device and receive the DTMF or FSK MODEM control signal current and the operating power of the LED signal. Use a coil with a larger diameter than the primary 600Ω winding that can pass current.

The wiring from the occlusion device to the signal box is 2 wires and controls all of the 2nd lights (2 lights), 3rd lights (4 lights), and 4 lights (4, 5 lights).

In order to achieve this configuration and effect, when a certain voltage is supplied from the occluded signal power supply and applied to the 7th pin of the transformer through the rectifier diode, the 8th pin of the transformer connected to C1 blocks the DC component due to the characteristics of the capacitor. It is output along the winding of the transformer and the signal power is transmitted to the LED signal.

The use of the rectifier diode is that when +DC V passes through the LED signal and current flows normally, a certain voltage is dropped to the anode and cathode connected in series, and when the voltage becomes the LED operating voltage of the photocoupler, the transistor of the photocoupler is turned on to confirm that the LED signal and the occlusion device are electrically connected.

Alternatively, if a precise current detection circuit is applied to a current detection circuit using a rectifier diode and a photocoupler, the operation of each LED signal module can be double monitored by monitoring the AF (Audio Frequency) signal and current change.

DC returned through the LED signal returns to -DC of the occluded signal power supply through the winding of the transformer to constitute a current supply loop of the LED signal operating power.

Resistors RA and RB connected to the transformer are overcurrent limiting resistors. The capacitor connected to the transformer transmits the DTMF or FSK MODEM control signal, which is the AC component, to the primary and secondary sides of the transformer by AC coupling of a specific winding of the transformer, and separates the DC component, which is the operating power of the LED signal. plays a role

When the power supply loop is normally configured, the LED signal control signal composed of the DTMF or FSK MODEM signal to be transmitted from the occlusion device to the LED signal by the hybrid circuit composed of two OP-AMPs connected to the winding of the transformer and the status/ Separate the control signal.

ZD1 and ZD2 connected in series and parallel with the resistor connected to the winding of the transformer are circuit components for limiting abnormal signal voltage and limiting noise and other surge signals and induced signals.

Pin 1 of the transformer is connected to the hybrid circuit, and pin 5 is connected to the hybrid circuit ground for the control signal separated from the ground supplied to the LED signal.

The hybrid circuit for the control signal is composed of two independent OP-AMPs, and one is mounted in a signal box composed of 2, 3, 4 LED signal modules.

The DTMF or FSK MODEM control signal received from the LED signal in the transformer is induced in the transformer, and when the signal is transmitted to the (+) input pin of the resistor and A-AMP, the other side of the resistor is the output pin of the B-AMP. The signal is canceled, and the signal is output to the output pin of A-AMP.

The signal blocks the DC component, decodes the AC signal with a DTMF-decoder or FSK MODEM IC, and delivers it to the occlusion signal controller MPU.

The occlusion signal controller MPU analyzes the signal input from the DTMF-decoder or FSK MODEM IC to determine the status information of the LED signal module to control the LED signal module.

A dual-tone DTMF Audio or FSK MODEM Audio signal is generated in the DTMF generator IC or FSK MODEM using the data generated by the BCD code in the occlusion signal controller MPU.

When the DTMF Audio or FSK MODEM Audio signal with the DC component blocked is input to the (+) input pin of the B-AMP, it is amplified as much as set by the resistance value connected to the GND, (+) input pin, and the output pin, and a specific resistance is applied. When applied to the transformer through the DTMF or FSK MODEM control signal to the transformer is transmitted as an AC component signal.

Here, the Zener diode is for limiting line noise and power supply noise and other surge voltages.

Occlusion device side circuit description according to an embodiment

3 and 4, when +DC50V is supplied from the occlusion signal power supply and applied to the 7th pin of T1 through the rectifying diode D2-D1, the 8th pin of T1 connected to C1 is DC due to the characteristics of the capacitor. Since the component is blocked, the current is outputted along the 300Ω winding of No. 6 and No. 7 of T1 to No. 6 of T1, and signal power +DC 50V is transmitted to the LED signal.

The purpose of the rectifier diode D2-D1 is that when +DC 50V passes through the LED signal and current flows normally, a certain voltage is dropped to the anode of D2 and the cathode of D1 connected in series, and when the voltage becomes the LED operating voltage of the photocoupler PC1 Turn on the transistor of photocoupler PC1 to check that the LED signal and the blocking device are electrically connected.

The resistor connected to the LED of the photocoupler PC1 is for protecting the LED overcurrent of the photocoupler PC1.

The +DC50V returned through the LED signal returns to -DC50V of the occluded signal power supply through the 300Ω winding of the 9th and 8th pins of T1 to constitute a current supply loop of the LED signal operating power.

Resistors RA and RB connected to pins 7 and 8 of T1 are overcurrent limiting resistors.

The capacitor C1 connected to the 7th and 8th pins of T1 is AC-coupled with the 6th-7th and 8th-9th windings of T1 to form an AC component to the 600Ω primary and secondary 300Ω-300Ω side of T1. The DTMF or FSK MODEM control signals are mutually transmitted, and the DC component, which is the operating power of the LED signal, plays a role in separating.

When the power supply loop is configured normally, it is for controlling the LED signal composed of DTMFC or FSK MODEM signal to be transmitted from the occlusion device to the LED signal by a hybrid circuit composed of two OP-AMPs connected to the 600Ω winding of pins 1 and 5 of T1. Separate the signal and the signal for status/control responded from the LED beacon.

The resistor connected to the 600Ω winding of the pin 1 and pin 5 of T1 and VR1 are circuits for limiting the control signal voltage induced in the line and limiting the noise and induced signal.

Pin 1 of T1 is connected to the hybrid circuit, and pin 5 is connected to the hybrid circuit ground for the control signal separated from the ground supplied to the LED signal.

The hybrid circuit for the control signal is composed of two independent OP-AMPs, and one is mounted in a signal box composed of 2, 3, 4 LED signal modules.

The two independent OP-AMPs are mounted separately as A-AMP and B-AMP on one 8-pin IC.

The DTMF or FSK MODEM control signal received from the LED signal on pin 6 and pin 9 of T1 is induced in the winding of pin 1 and grounded pin 5 of T1, and resistors R5 and A along pin 1 When a signal is transmitted to the (+) input pin of -AMP, the signal on the output pin of B-AMP on the other side of resistor R5 is erased, and a signal is output to the output pin of A-AMP.

The signal blocks the DC component, decodes the AC signal with a DTMF-decoder or FSK MODEM IC, and delivers it to the occlusion signal controller MPU.

The occlusion signal controller MPU analyzes the signal input from the DTMF-decoder or FSK MODEM IC to determine the status information of the LED signal module to control the LED signal module.

A dual-tone DTMF Audio or FSK MODEM Audio signal is generated in the DTMF generator IC or FSK MODEM using the data generated by the BCD code in the occlusion signal controller MPU.

When the DTMF Audio or FSK MODEM Audio signal with the DC component blocked is input to the (+) input pin of the B-AMP, it is amplified as much as set by the resistance value connected to the GND, (+) input pin, and the output pin, and the resistor R5 ( 600Ω) and applied to pin 1 of T1, the DTMF or FSK MODEM control signal is transmitted as an AC component signal to pins 6 and 9 of T1. The resistor R5 (600Ω) is a resistor for impedance matching with T1.

Here, Zener diodes ZD1 and ZD2 are for limiting line noise and power supply noise and other surge voltages and are about 3V.

On the other hand, as another embodiment, the present invention can be manufactured using a transmission and reception control signal code generator using DTMFC or FSK MODEM for controlling 2-wire, 2-wire, 3-light 3-way, 4-wire, and 4-light 5-time signal. have.

For example, it can be applied to a high-capacity VoIP (Voice over Internet Protocol) gateway system by real-time implementation of DTMFC tone transceiver or FSK MODEM using high-performance DSP.

At this time, the receiver uses a Goertzel filter and the transmitter uses a harmonic resonance filter. Texas Instruments TMS320C62x DSP can be used, such as effective PCM input/output using DMA (Direct Memory Access) and McBSP (Multi Channel Buffered Serial Port), and message communication with MPU (Main Processing Unit) through HPI (Host Port Interface).

In this case, R2MFC/DTMF tone transceiver or FSK MODEM can be implemented using a high-performance DSP (Digital Signal Processor) and applied to a high-capacity (32 El/Tl) VoIP gateway system.

Alternatively, in an LED driving device for driving an LED, the present invention provides an EMI filter connected to an input power source and removing electromagnetic noise of an input/output signal, and a power factor correction connected to an output terminal of the EMI filter and controlling the shape of the input current. A circuit (PFC), a DC-DC converter for transforming the output voltage of the power factor correction circuit, a sensor input unit for receiving a sensor signal, a transceiver unit for transmitting and receiving communication signals, and the DC- to match the forward voltage of the LED Another DSP for controlling the DC converter and controlling the illuminance according to the sensor signal input from the sensor input unit or the communication signal input from the transceiver unit may be included.

As another embodiment of the present invention, a communication unit connected to a communication line to receive a DTMF signal from the outside; It may include a; having a DTMF or FSK MODEM decoder that interprets the DTMF or FSK MODEM signal as a power switching control command, and performs LED power switching according to the control command interpreted by the decoder.

The processor for generating a DTMF or FSK MODEM audio signal according to an embodiment of the present invention may include an on-chip memory, a memory controller, master IPs, a bus, and the like.

In this case, the processor may be an application processor (AP).

As shown, the processor may include various master IPs as a system on chip (SoC).

For example, the master IPs are a central processing unit (CPU), a graphic processing unit (GPU), a multi format codec (MFC), a digital signal processor (DSP), a display, an audio, and an eMMC ( An embedded Multi Media Card) controller, a Universal Flash Storage (UFS) controller, and the like may be included.

The on-chip memory includes a special function register (SFR), a transaction decoder, a buffer/cache selector, a cache allocator, a buffer controller, and a cache. It may include a cache controller and a memory space.

The SFR is a special function register area that can control and monitor various functions of the processor. Depending on the configuration of the processor, I/O and peripheral control units, timers, stack pointers, stack limits, program counters, subroutine return addresses, processor state (processor) status), and may include, but is not limited to, condition codes.

Claims (8)

In the LED signal module control device,
LED signal module control device, characterized in that the transmit and receive control signal codes use DTMFC or FSK MODEM for controlling 2 light, 3 light 3 or 4 light, and 4 light 5 light signal with 2 wires. The method of claim 1,
The transmission and reception control signal and power combination transformer is composed of 600Ω/1 winding on the primary side and 300Ω/2 winding on the secondary side, and the primary 600Ω winding is used for combining DTMF or FSK MODEM Audio control signals, so the diameter is small. A small coil is used, and the secondary 300Ω two windings supply power to the LED signal in the occlusion device, and receive the DTMF or FSK MODEM Audio control signal current and the operating power of the LED signal. LED signal module control device, characterized in that it uses a coil with a larger diameter than the primary 600Ω winding that can flow DC current, which is the operating power of the LED signal. The method of claim 1,
When +DC50V is supplied from the occlusion device side occlusion signal power supply of the LED signal module control device and applied to the 7th pin of T1 through the rectifier diode D2-D1, the 8th pin of T1 connected to C1 is DC due to the characteristics of the capacitor. As the component is blocked, the current is outputted to the 6th of T1 along the 300Ω winding of 6th and 7th of T1, and the signal power +DC50V is transmitted to the LED signal. The method of claim 1,
The +DC50V returned through the LED signal returns to -DC50V of the occluded signal power supply through the 300Ω winding of the 9th and 8th pins of T1 to configure the current supply loop of the LED signal operating power,
The capacitor C1 connected to the 7th and 8th pins of T1 is AC-coupled with the 6th-7th and 8th-9th windings of T1 to form an AC component to the 600Ω primary and secondary 300Ω-300Ω side of T1. The DTMF or FSK MODEM control signal is mutually transmitted, and the DC component, which is the operating power of the LED signal, plays a role in separating.
When the power supply loop is configured normally, the LED signal control signal composed of DTMF or FSK MODEM to be transmitted from the occlusion device to the LED signal by a hybrid circuit composed of two OP-AMPs connected to the 600Ω winding of pins 1 and 5 of T1. Separates the status/control signal responded from and the LED signal,
Pin 1 of T1 is connected to the hybrid circuit and pin 5 is connected to the hybrid circuit ground for the control signal separated from the ground supplied to the LED signal,
The hybrid circuit for the control signal is composed of two independent OP-AMPs, and one is mounted in a signal box composed of 2, 3, 4 LED signal modules,
The two independent OP-AMPs are mounted separately as A-AMP and B-AMP on one 8-pin IC,
The DTMF or FSK MODEM control signal received from the LED signal on pin 6 and pin 9 of T1 is induced in the winding of pin 1 and grounded pin 5 of T1, and resistors R5 and A along pin 1 When a signal is transmitted to the (+) input pin of -AMP, the signal of the output pin of B-AMP is erased on the other side of the resistor R5, and a specific signal is output to the output pin of A-AMP. module control unit. 4. The method of claim 3,
In the rectifier diode D2-D1, when +DC 50V passes through the LED signal and current flows normally, a certain voltage is dropped to the anode of D2 and the cathode of D1 connected in series. LED signal module control device, characterized in that by turning on the transistor of PC1 to confirm that the LED signal and the occlusion device are electrically connected. 5. The method of claim 4,
The specific signal blocks the DC component and decodes the AC signal into a DTMF-decoder IC or FSK MODEM signal and delivers it to the occlusion signal controller MPU,
The occluded signal controller MPU analyzes the signal input from the DTMF-decoder IC or FSK MODEM to determine the status information of the LED signal module to control the LED signal module. 7. The method of claim 6,
LED signal module control device, characterized in that a dual-tone DTMF Audio or FSK MODEM Audio signal is generated from the DTMF generator IC or FSK MODEM with the data generated by the BCD code in the occlusion signal controller MPU. 8. The method of claim 7,
When a dual-tone DTMF Audio or FSK MODEM Audio signal in which the DC component is blocked is input to the (+) input pin of the B-AMP, it is amplified as much as set by the resistance value connected to the GND, (+) input pin, and the output pin, LED signal module control device, characterized in that when applied to pin 1 of T1 through resistor R5, DTMF or FSK MODEM control signal is transmitted as an AC component signal to pins 6 and 9 of T1.

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