KR102654346B1 - Stage power supply line automatic inspection and emergency line switching system - Google Patents

Abstract

The stage power supply line automatic inspection and emergency line transfer system according to the present invention includes a rack panel; An MCU card located at the top of the rack panel and receiving lighting control signals from an external broadcasting central control room; And when three-phase power is supplied to a lighting device that is inserted and stacked in the rack panel in a pocket manner and connected to the MCU card and connected to a load according to the lighting control signal, a problem occurs in any phase and power is not supplied. Including multiple SSR rack cards that test lighting lines and supply power by switching to power on another phase, the user can check for any abnormalities at a glance with an intuitive electric display device.

Description

Stage power supply line automatic inspection and emergency line switching system {STAGE POWER SUPPLY LINE AUTOMATIC INSPECTION AND EMERGENCY LINE SWITCHING SYSTEM}

The present invention relates to an automatic stage power supply line inspection and emergency line transfer system. More specifically, a stage power supply line automatic inspection and emergency line transfer system for stably supplying power to LED lighting used in broadcasting stations or performance halls. It's about.

The stage lighting used in the existing performance hall used spotlights that were used by adjusting the brightness of halogen lamps using a dimmer device (voltage converter).

In addition, effect lighting devices (moving lights, fog machines, etc.) malfunction and frequently fail when voltage fluctuations exceed 10%, so a remote direct power supply device that supplies 220V power was used in parallel with a dimmer device.

The conventional remote direct power supply device consists of the accessories arranged in Figure 1 (existing R/D system), with an instrument (1) that detects voltage and current on the front of the panel and an SSR (solid-state relay: 3) in the field. You can see that a 24V control switch that operates is installed.

Inside the panel, power is applied to the SSR (solid state relay: 3), which is supplied with power from the main circuit breaker (6), and the SSR (solid state relay: 3) supplies DC24V SSR control power from the 24V power supply (4). It receives a 24V power signal from the field controller (2) and the 2-color toggle switch (8) controlled remotely (main control room), conducts 220V, supplies power to the individual load breaker (5), and the power that passes through the breaker is connected to the terminal block. It consists of a system that applies power to the effect lighting device through (7).

The blocking function of the conventional remote direct power supply device described above only blocks short circuits and overloads by the individual load breaker (5), causing an accident in which the SSR (solid state relay: 3) is burned out, resulting in insufficient immediate response to the problem. There is a problem that makes it difficult to perform raw.

In addition, currently, there is a rapid change from halogen lamps, which have low efficiency and high electricity consumption, to LED lighting devices in broadcasting stations or performance halls with the development of LED lighting devices with various built-in functions, high efficiency and low electricity consumption, and a high color temperature. As a result, users need a stable power supply.

Republic of Korea Patent Publication No. 10-1924147 (2018.11.26)

In order to solve the problems described above and meet the needs, the present invention allows changing the address of the DMX512D protocol that turns on/off each lighting power, so that it can freely respond to changes in the DMX512 data of the broadcast lighting console. The purpose is to provide an automatic inspection of stage power supply lines and an emergency line transfer system.

In addition, in order to solve the problems described above and meet the needs, the present invention allows each address to be changed by a solid-state (SSR) switch instead of the address designation being fixed by a profile embedded in the program. , The purpose is to provide an automatic inspection of stage power supply lines and an emergency line transfer system.

In addition, in order to solve the above-mentioned problems and meet the needs, the present invention places an electronic switch (relay) on the secondary block of the SSR to block leakage current when the power is turned off, thereby preventing electric shock on the secondary side. In addition, the purpose is to provide an automatic inspection of stage power supply lines and an emergency line transfer system that can physically block AC 220V power.

In addition, in order to solve the above-described problems and meet the needs, the present invention measures the voltage of each SSR input terminal and also measures the voltage of the output terminal so that the user can be notified in a timely manner when a power failure occurs. Through the CT current sense of the current on the secondary side, the current current status can be checked by the user through each LCD placed on the SSR rack card, and the amount of electric current can be checked by placing the ZCT at the SSR output terminal. The purpose is to provide an automatic inspection and emergency line transfer system for stage power supply lines that can measure .

In addition, in order to solve the above-described problems and meet the needs, the present invention displays three-color LEDs corresponding to the data value of the DMX512 protocol on the front of the CPU rack card to display the data of DMX512 and the status of the SSR rack card in LED color. The purpose is to provide an automatic stage power supply line inspection and emergency line transfer system that can be checked at a glance.

In addition, in order to solve the problems described above and meet the needs, the present invention synchronizes and displays the status value of the DMX512 signal and the SSR output status value in the broadcasting control room, so that orange and red LEDs other than the green LED are turned on in the broadcasting control room. The purpose is to provide an automatic stage power supply line inspection and emergency line transfer system that can intuitively determine when an SSR problem has occurred.

In order to achieve the above-described purpose, the stage power supply line automatic inspection and emergency line transfer system according to the present invention includes a rack panel; An MCU card located at the top of the rack panel and receiving lighting control signals from an external broadcasting central control room; And when three-phase power is supplied to a lighting device that is inserted and stacked in the rack panel in a pocket manner and connected to the MCU card and connected to a load according to the lighting control signal, a problem occurs in any phase and power is not supplied. It is characterized by including a plurality of SSR rack cards that test the lighting line and supply power by switching to the power of another phase.

In addition, in order to achieve the above-described purpose, the MCU card of the stage power supply line automatic inspection and emergency line transfer system according to the present invention includes a lighting console interface that is connected to the lighting console of the broadcasting central control room and receives lighting control signals; DMX512 split for distributing lighting control signals received by the lighting console interface to each designated address; An MCU module consisting of a first MCU and a second MCU that each receive a lighting control signal from the DMX512 split; a firmware shared buffer that is shared by the first MCU and the second MCU and allows control logic to be changed from the first MCU to the second MCU when operating authority is transferred from the first MCU to the second MCU; An integrated electronic display board where a plurality of LEDs are arranged to display the lighting control signal status and to indicate a failure of the SSR rack card that supplies power to the lighting device as a load; and an SSR rack card interface that is connected to a plurality of the SSR rack cards and allows the lighting control signal to be transmitted to a lighting device connected to the corresponding SSR rack card.

In order to achieve the above-mentioned purpose, the MCU module of the stage power supply line automatic inspection and emergency line transfer system according to the present invention uses the first MCU as the main, and if a problem occurs in the first MCU, the first MCU It is characterized in that control of the lighting device can be performed continuously by transferring control to the second MCU.

In order to achieve the above-described object, the SSR rack card of the stage power supply line automatic inspection and emergency line transfer system according to the present invention includes an address designation switch that specifies the address of the lighting device controlled by the SSR rack card according to the rotation operation; an LCD window displaying a lighting device connected to a designated address according to an operation of the address designating switch; A status display lamp that displays power supply status, overcurrent status, and failure status supplied to the lighting device; Function dip switch to set the emergency power supply mode by rotating and positioning in a rotary manner; An input/output module consisting of a contact switch, a three-phase non-contact switch, a power output unit, and a latching relay to output the input power to a lighting device; CT&ZCT, which detects the current flowing in each phase and detects the leakage value; A low-voltage test module that cuts off the main power and applies low-voltage power to check for electrical leaks or shorts when an electrical problem occurs in each phase; and a control unit that recognizes a low-voltage test signal when an electrical problem occurs.

In order to achieve the above-described object, the status display lamp of the stage power supply line automatic inspection and emergency line transfer system according to the present invention includes a first lamp that indicates whether priority power is supplied to the lighting device; a second lamp indicating whether emergency power is supplied to the lighting device; a third lamp indicating an overcurrent occurrence state of the non-contact output; and a fourth lamp that lights up in red when the SSR rack card is broken.

In order to achieve the above-mentioned purpose, the low-voltage test module of the stage power supply line automatic inspection and emergency line transfer system according to the present invention recognizes the operation signal according to the operation of the test switch operated by the user or manager, and the main power and lighting device are operated. After turning off the connected relay, a low-voltage source power is applied to the load instead to check for leakage and short circuit.

In order to achieve the above-mentioned purpose, the input and output modules of the stage power supply line automatic inspection and emergency line transfer system according to the present invention include an R-phase solid-state switch, an S-phase solid-state switch, and a T-phase solid-state switch and the corresponding output unit. It is characterized in that A, output unit B, and output unit C are connected by a latching relay.

In order to achieve the above-mentioned purpose, the input/output module of the stage power supply line automatic inspection and emergency line transfer system according to the present invention is operated when an electrical problem occurs in the R-phase non-contact switch and power is not output to the output unit A. , turn off the R-phase contact switch at the output terminal of the R-phase solid-state switch, and switch the contact switch connected to the output unit A to a node connected to the S-phase solid-state switch so that the S-phase power is output to the output unit A. It is characterized by:

In order to achieve the above-mentioned purpose, the input/output module of the stage power supply line automatic inspection and emergency line transfer system according to the present invention is operated when an electrical problem occurs in the S-phase non-contact switch and power is not output to the output unit B. , the S-phase contact switch at the output terminal of the S-phase solid-state switch is turned off, and the contact switch connected to the output unit B is switched to a node connected to the T-phase solid-state switch, so that the T-phase power is output to the output unit B. It is characterized by making it possible.

In order to achieve the above-mentioned purpose, the input/output module of the stage power supply line automatic inspection and emergency line transfer system according to the present invention is operated when an electrical problem occurs in the T-phase non-contact switch and power is not output to the output unit C. , the T-phase contact switch at the output terminal of the T-phase solid-state switch is turned off, and the contact switch connected to the output unit C is switched to a node connected to the R-phase solid-state switch, so that the power of the R phase is output to the output unit C. It is characterized by making it possible.

In order to achieve the above-described purpose, the input/output module of the stage power supply line automatic inspection and emergency line transfer system according to the present invention is configured to: If an electrical problem occurs in any phase and power is not output to the output unit to which the lighting device is connected, It is characterized in that the contact switch at the output terminal of the corresponding phase is turned off and the contact switch connected to the output portion is switched to a node connected to the non-contact switch of the other phase so that the power of the other phase can be output to the output portion.

The stage power supply line automatic inspection and emergency line transfer system according to the present invention is equipped with its own line inspection and power transfer system, which has the effect of securing user convenience and stability.

The automatic stage power supply line inspection and emergency line transfer system according to the present invention allows the user to place the input voltage, output voltage, current amount, current state measured through CT current sense, and earth leakage state measured through ZCT on the SSR rack card. This has the effect of allowing the user to easily inspect the product by allowing it to be checked through each LCD.

In addition, the automatic stage power supply line inspection and emergency line transfer system according to the present invention has the effect of allowing users to check for abnormalities at a glance through an intuitive electronic display device.

Figure 1 is a diagram for explaining a conventional stage power supply device.
Figure 2 is a diagram of a stage power supply line automatic inspection and emergency line transfer system according to the present invention.
Figure 3 is an MCU card block diagram of the stage power supply line automatic inspection and emergency line transfer system according to the present invention.
Figure 4 is a front configuration diagram of the SSR rack card of the stage power supply line automatic inspection and emergency line transfer system according to the present invention.
Figure 5 is a SSR rack card block diagram of the stage power supply line automatic inspection and emergency line transfer system according to the present invention.
Figure 6 is a diagram for explaining the latching relay sequence of the stage power supply line automatic inspection and emergency line transfer system according to the present invention.
Figure 7 is a diagram illustrating a low-voltage test of the stage power supply line automatic inspection and emergency line transfer system according to the present invention.
Figure 8 is an actual photographic diagram of the MCU card and SSR rack card of the stage power supply line automatic inspection and emergency line transfer system according to the present invention in a connected state.

Terms or words used in this specification and claims should not be construed as limited to their common or dictionary meanings, and the inventor may appropriately define the concept of terms in order to explain his or her invention in the best way. Based on the principle that there is, it must be interpreted with a meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent the entire technical idea of the present invention, so they can be replaced at the time of filing the present application. It should be understood that various equivalents and variations may exist.

Hereinafter, the stage power supply line automatic inspection and emergency line transfer system according to the present invention will be described in detail with reference to the attached drawings.

As shown in Figure 2, the stage power supply line automatic inspection and emergency line transfer system according to the present invention includes a rack panel 100, an MCU card 200, and an SSR rack card 300.

The rack panel 100 allows the plurality of SSR rack cards 300 to be stacked and the MCU card 200 to be stacked and stored at the top.

The MCU card 200 is based on receiving DMX512 signals and is also programmed to receive TCPIP communication and convert it into DMX512 signals.

In addition, the MCU card 200 according to the present invention allows the ARTNET-DMX protocol to be used in accordance with advanced lighting console communication technology, so it can be used for the purpose of a broadcast lighting power supply system.

More specifically, as shown in FIG. 3, the MCU card 200 includes a lighting console interface 210, a DMX512 split 220, an ART-NET 230 MCU module 240, a firmware shared buffer 250, It includes an integrated electronic display board (260) and an SSR rack card interface (270).

The lighting console interface 210 is connected to the lighting console of the broadcasting central control room and receives a DMX512 signal, which is a 485 communication signal, and an ART-NET communication signal, which is an Ethernet communication signal.

The DMX512 splitter 220 distributes the DMX512 signal received by the lighting console interface 210 to each designated address.

The Altnet 230 transmits the Altnet communication signal received by the lighting console interface 210 through Ethernet communication to the MCU module 240.

The MCU module 240 is composed of a first MCU 241 and a second MCU 242, and the first MCU 241 and the second MCU 242 receive a DMX512 signal from the DMX512 split 220. are each approved.

As described above, the MCU module 240 is composed of the first MCU 241 and the second MCU 242, so that when the signal of the first MCU 241, which is the main MCU, is lost or there is no signal, the sub MCU automatically It is converted into a DMX512 signal applied to the corresponding second MCU (242), and the second MCU (242) controls the operating rights of lighting devices connected to the automatic stage power supply line automatic inspection and emergency line transfer system according to the present invention. It was made possible.

That is, as described above, the MCU module 240 is composed of the first MCU 241 and the second MCU 242, and when a problem occurs, the control rights (operating rights) are transferred from the first MCU 241 to the second MCU 242. ) is to prevent the lighting power from turning off due to problems in transmitting the DMX512 signal to the lighting fixture.

The firmware shared buffer 250 is firmware shared by the first MCU 241 and the second MCU 242, and is used for control logic when operating rights are transferred from the first MCU 241 to the second MCU 242. are changed from the first MCU 241 to the second MCU 242.

That is, the firmware shared buffer 250 operates when electronic circuits are operated by the first MCU 241 and the operating rights are transferred to the second MCU 242. The MCU 241 is excluded and the electronic circuits can be controlled in the same way as the first MCU 241.

The integrated electronic signboard 260 has a plurality of LED elements arranged to display the status of lighting connected to the automatic stage power supply line inspection and emergency line transfer system according to the present invention.

More specifically, the integrated electronic display board 260 has 512 three-color LEDs arranged on the front to display the DMX512 signal status, and also displays notifications and failures of the SSR rack card 300, which supplies power to the lighting device as a load. Administrators provide intuition, enabling quick fault diagnosis.

The SSR rack card interface 270 is connected to a plurality of SSR rack cards 300 inserted into the rack panel 100 and transmits various control signals, such as the DMX512 signal, to lighting fixtures connected to the corresponding SSR rack card 300. Make sure it can be delivered.

The SSR rack card 300 is guided by a rack guide formed on the rack panel 100 and is inserted into and coupled to the exact position of the electrical connection connector.

The stage power supply line automatic inspection and emergency line transfer system according to the present invention may further include a wireless remote interface 280, which is wirelessly connected to a remote remote and allows the user to operate the remote. Control signals, etc. can be received according to.

The stage power supply line automatic inspection and emergency line transfer system according to the present invention is also connected to the central electronic signboard of the broadcasting central control room, so that the status of lighting devices connected to the system can be monitored from a remote location.

In addition, the stage power supply line automatic inspection and emergency line transfer system according to the present invention further includes a PC monitoring option such as an HDMI terminal, USB terminal, NFC module, or Bluetooth module that can be connected to a PC and monitor the system with the PC. can do.

As shown in Figures 3 and 4, the SSR rack card 300 can be inserted into the rack panel 100 in a pocket style and can be pulled out as needed during replacement or maintenance.

In the following description, photographic drawings of the actual MCU card 200 and the SSR rack card 300 shown in FIG. 8 may be referred to.

Specifically, the SSR rack card 300, which communicates with the MCU card 200, includes an address designation switch 310, an LCD window 320, a status display lamp 330, a function dip switch 340, and a power input/output module. It includes (350), CT&ZCT (360), low voltage test module (370), control unit (380), and AD converter (390).

The address designation switch 310 is composed of a plurality (3 pieces) and is rotated in a rotary manner, and the address of the lighting device controlled by the corresponding SSR rack card 300 can be specified (changed) according to the rotation operation.

The address designation switch 310 is composed of three, and each switch has numbers from 0 to 9 written on it, each representing the tens digit, the hundreds digit, and the unity digit.

For example, if the first address designation switch 310 is set to 3, the second address designation switch 310 is set to 7, and the third address designation switch is set to 5, the address designation switch 310 is set to 375. It supplies power to lighting equipment.

At this time, the address designation switch 310 can designate the addresses in duplicate, and when the output power of the main address is lost, the non-contact switch designated as the emergency address is turned on to stably supply power to the lighting devices. You can.

Meanwhile, the LCD window 320 displays lighting devices connected to a designated address according to the operation of the address designation switch 310, allowing the manager to easily check and manage them.

In addition, the LCD window 320 displays input voltage status, output voltage status, and current value in addition to the setting address, allowing the manager to check the current load status by checking the displayed value.

In addition, the LCD window 320 displays the short circuit status and the leakage current value detected by the CT&ZCT 360, allowing the cause of the failure to be confirmed intuitively with the naked eye.

The status display lamp 330 includes a first lamp 331, a second lamp 332, a third lamp 333, and a fourth lamp 334.

The first lamp 331 is a lamp that indicates the priority power supply status, and when it is turned on, it can be determined that there is no malfunction and that power is being supplied to the lighting device normally.

The second lamp 332 is a lamp that indicates the emergency power supply status, and when it is lit, it can be determined that a failure has occurred and emergency power is being supplied.

The third lamp 333 is a lamp that lights up in orange. When overcurrent of the non-contact output occurs, the third lamp 333 lights up on the front of the SSR rack card 300 to indicate the overcurrent state and indicates the safety of the current power supply state. You can understand it intuitively and quickly.

The fourth lamp 334 is a lamp that lights up in red, so that the broken SSR rack card 300 can be accurately identified, enabling rapid replacement.

The function dip switch 340 can select numbers from 0 to 9 by rotating and positioning it in a rotary manner.

At this time, the manager or user can set the emergency power supply mode by manipulating the function dip switch 340 and positioning it at a random number (e.g., number 9).

As described above, by setting the emergency power supply mode, the MCU card 200 uses the non-contact point and relay designated as the emergency power supply address when the priority power supply output voltage is not detected for any SSR rack card 300. You can transmit a command by turning it on.

The MCU card 200 always checks the output status of a non-contact point designated by a priority address in the SSR rack card 300, and when the output voltage is not detected, it turns off the non-contact switch and relay designated by the priority address. After doing so, turn on the non-contact switch and relay designated as the emergency address to supply power stably.

As shown in FIG. 5, the power input/output module 350 includes an R-phase solid-state switch 351, an S-phase solid-state switch 352, and a T-phase solid-state switch 353 in the case of three phases, and the corresponding outputs. Part A (351a), output part B (352a), and output part C (352c) are connected by a latching relay.

Meanwhile, on the input side of the R-phase solid-state switch 351, the S-phase solid-state switch 352, and the T-phase solid-state switch 353, an input-side first TR, an input-side second TR, and an input-side third TR are provided, respectively. They are connected, and a first output TR, a second output TR, and a third output TR are formed at the front ends of the output unit A (351a), the output unit B (352a), and the output unit C (352c), respectively.

The R-phase solid-state switch 351, S-phase solid-state switch 352, and T-phase solid-state switch 353 are each assigned the LCD window 320, so that the status can be checked without operating the switch.

Although not shown in FIG. 5, the power input/output module 350 is formed with input terminals on R, S, T, and N that receive power.

Power is supplied to the power input/output module 350 connected to the connector through the lead-in terminal, and each power supply supplies individual non-contact power to the pattern of the main board through the 90-degree tightened terminal.

The control unit 380 reads the voltage of AC380V of the first TR on the input side, the second TR on the input side, and the third TR on the input side and displays them on the LDC window 320.

Although not shown in FIG. 5, the output terminal formed on the power input/output module 350 is connected to each connector via the non-contact switches 351, 352, and 353 and the contact latching relay to output a lighting voltage of AC 220V. do.

Meanwhile, the letching relay sequence will be described in detail with reference to FIG. 6.

If an electrical problem occurs in the R-phase solid-state switch 351 and power is not output to the output unit A (351a), the R-phase contact switch at the output terminal of the R-phase solid-state switch 351 Turn off, and switch the contact switch 1 connected to the output unit A (351a) to the node A connected to the S-phase non-contact switch 352 so that the S-phase power can be output to the output unit A (351a). .

In addition, when an electrical problem occurs in the S-phase solid-state switch 352 and power is not output to the output unit B (351b), the S-phase contact point at the output terminal of the S-phase solid-state switch 352 Turn off the switch, and switch the contact switch 2 connected to the output unit B (351b) to the b node connected to the T-phase non-contact switch 353, so that the T-phase power can be output to the output unit B (352b). Let it happen.

In addition, when an electrical problem occurs in the T-phase solid-state switch 353 and power is not output to the output unit C (351c), the T-phase contact at the output terminal of the T-phase solid-state switch 353 Turn off the switch, and switch the contact switch 3 connected to the output unit C (353c) to the c node connected to the R-phase non-contact switch 351, so that the power of the R phase can be output to the output unit C (353c). Let it happen.

, the contact switch 1 connected to the output unit A (351a) is switched to the b node connected to the S-phase non-contact switch 352 so that the S-phase power can be output to the output unit A (351a).

The CT&ZCT (360) detects the current flowing in each phase, and when a leakage value is detected, the control unit 380 compares it with a threshold value to determine whether there is a leakage, and when a leakage occurs, the leakage current is displayed in the LDC window 320. ) can be displayed to notify the administrator of any abnormalities.

If necessary, the control unit 380 can cut off the power supplied to the load when leakage current exceeds a certain level.

As shown in FIG. 7, the low-voltage test module 370 operates the measurement circuit 372 of the control unit 380 according to the operation of the test switch 371 by the user or administrator to determine the state of each phase of the power input/output module 350. Test .

More specifically, when an electrical problem occurs, the low-voltage test module 370 or the control unit 380 recognizes an operation signal according to the operation of the test switch 371 and connects the main power (40A, 250V) and the load (lighting). ) After turning off the connected relay, instead, low-voltage source power (100mA, DC24V) is applied to the load to check for leakage and short circuit.

That is, after turning off the main power, the switch that can measure the abnormality is turned on and the measurement circuit 372 is used to test whether the electrical problem occurred due to a short circuit or a circuit breaker tripping due to grounding.

At this time, the manager or user manipulates the function dip switch 340 and positions it at a random number (e.g., number 5) to switch the LCD window to test mode so that the test can proceed.

As shown in FIG. 7, when the control unit 380 inputs a high-speed pulse with a 12V voltage and a switching value of about 1 megabyte to the load side for each phase, a closed loop is formed if any phase is grounded and a short circuit occurs. When the current is input to the measurement circuit 372, it can be detected to determine which phase is leaking.

Also, the control unit 380 tests to see if the line is short-circuited if the circuit breaker is tripped and the signal is not clearly received, so it is not a short circuit.

That is, the control unit 380 applies a pulse through a measurement line connected to the load to test whether a short has occurred in the measurement line. If it is confirmed that a short has occurred, the control unit 380 displays the LCD window 320 for each phase. If the test result is a leak, it displays Recur On (ON), and if it is a short, it displays Short On (ON).

As described above, the user can check the current status of whether leakage or short circuit has occurred through the LCD window 320.

This is to prevent various accidents that may occur when AC 220V is applied to a problematic lighting power line, and also to ensure the safety of managers and safely use the automatic stage power supply line inspection and emergency line transfer system according to the present invention.

The integrated electronic display board 260 displays the location where the fault is diagnosed, the presence or absence of the DMX512 signal, the non-contact switch assigned to the DMX512 address, and the status of AC220V power supply via the magnetic contactor, and is installed as many addresses as the number of DMX512 addresses. When the data is over 10, it lights up in green, and in case of a malfunction, the color changes to red.

To diagnose the failure, the control unit 380 reads the voltage values of the first RT, second TR, and third TR output transformers of the power input/output module 350 and determines whether there is an abnormality.

In addition, the SSR rack card 300, which supplies AC220V power through the first RT, second TR, and third TR on the output side, was able to read the voltage while being electrically isolated.

The CT&ZCT (360) reads the current current and allows the control unit (380) to determine the presence or absence of overcurrent. In this way, each output state can be measured.

The AD converter 390 converts the analog current value measured by the CT&ZCT 360 formed on each phase into digital form, changes the measured analog leakage current value into digital form, and changes the input voltage to digital form. Converts the analog output voltage from the input side 1st TR, input side 2nd TR, and input side 3rd TR to digital form to check whether the output voltage is coming out properly. It converts the analog output voltage from the 2 TR and the 3rd TR on the output side into digital form.

In the above, the technical idea of the present invention has been described along with the accompanying drawings, but this is an exemplary description of a preferred embodiment of the present invention and does not limit the present invention. In addition, it is clear that anyone skilled in the art of the present invention can make various modifications and imitations without departing from the scope of the technical idea of the present invention.

100: Rack panel
200: MCU card
210: Lighting console interface
220: DMX512 split
230 : ART-NET
240: MCU module
241: 1st MCU
242: 2nd MCU
250: Firmware shared buffer
260: Integrated electronic signboard
270: SSR rack card interface
300: SSR rack card
310: Address designation switch
320: LCD window
330: Status indicator lamp
331: first lamp
332: second lamp
333: third lamp
334: 4th lamp
340: Function dip switch
350: Power input/output module
360: CT&ZCT
370: Low voltage test module
371: test switch
372: measurement circuit
380: control unit
390: AD converter

Claims (11)

rack panel;
An MCU card located at the top of the rack panel and receiving lighting control signals from an external broadcasting central control room; and
If power is not supplied due to a problem in any phase while supplying three-phase power to a lighting device that is inserted and stacked in the rack panel in a pocket manner and connected to the MCU card and connected to a load according to the lighting control signal, the lighting Includes a plurality of SSR rack cards that test the line and supply power by switching to the power of another phase,
The SSR rack card is
An address designation switch that specifies the address of the lighting device controlled by the corresponding SSR rack card according to the rotation operation;
an LCD window displaying a lighting device connected to a designated address according to an operation of the address designating switch;
A status display lamp that displays power supply status, overcurrent status, and failure status supplied to the lighting device;
Function dip switch to set the emergency power supply mode by rotating and positioning in a rotary manner;
An input/output module consisting of a contact switch, a three-phase non-contact switch, a power output unit, and a latching relay to output the input power to a lighting device;
CT&ZCT, which detects the current flowing in each phase and detects the leakage value;
A low-voltage test module that cuts off the main power and applies low-voltage power to check for electrical leaks or shorts when an electrical problem occurs in each phase; and
An automatic stage power supply line inspection and emergency line transfer system comprising a control unit that recognizes a low-voltage test signal when an electrical problem occurs.
According to clause 1,
The MCU card is
A lighting console interface connected to the lighting console of the broadcasting central control room and receiving lighting control signals;
DMX512 split for distributing lighting control signals received by the lighting console interface to each designated address;
An MCU module consisting of a first MCU and a second MCU that each receive a lighting control signal from the DMX512 split;
a firmware shared buffer that is shared by the first MCU and the second MCU and allows control logic to be changed from the first MCU to the second MCU when operating authority is transferred from the first MCU to the second MCU;
An integrated electronic display board where a plurality of LEDs are arranged to display the lighting control signal status and to indicate a failure of the SSR rack card that supplies power to the lighting device as a load; and
An SSR rack card interface that is connected to a plurality of the SSR rack cards and allows the lighting control signal to be transmitted to a lighting device connected to the SSR rack card; an automatic stage power supply line inspection and emergency line transfer system comprising a. .
According to clause 2,
The MCU module is
A stage power supply that uses the first MCU as the main unit and switches control from the first MCU to the second MCU when a problem occurs in the first MCU so that lighting equipment can be controlled continuously. Automatic track inspection and emergency line transfer system.
delete According to clause 1,
The status indicator lamp is
a first lamp indicating whether priority power is supplied to the lighting device;
a second lamp indicating whether emergency power is supplied to the lighting device;
a third lamp indicating an overcurrent occurrence state of the non-contact output; and
A fourth lamp that lights up in red when the SSR rack card is broken. A stage power supply line automatic inspection and emergency line transfer system comprising a.
According to clause 1,
The low voltage test module is
It recognizes the operation signal resulting from the operation of the test switch operated by the user or administrator, turns off the relay connected to the main power and the lighting device, and then applies low-voltage source power to the load instead to check for leakage and short circuit. An automatic stage power supply line inspection and emergency line transfer system.
According to clause 1,
The input/output module is
Automatic stage power supply line, characterized in that the R-phase solid-state switch, S-phase solid-state switch, and T-phase solid-state switch and the corresponding output unit A, output unit B, and output unit C are connected by a latching relay. Inspection and emergency line transfer system.
According to clause 7,
The input/output module is
If an electrical problem occurs in the R-phase solid-state switch and power is not output to the output unit A, the R-phase contact switch at the output terminal of the R-phase solid-state switch is turned off, and the R-phase contact switch connected to the output unit A is turned off. An automatic stage power supply line inspection and emergency line transfer system characterized by switching the contact switch to a node connected to the S-phase non-contact switch so that the S-phase power is output to the output unit A.
According to clause 7,
The input/output module is
If an electrical problem occurs in the S-phase solid-state switch and power is not output to the output unit B, the S-phase solid-state switch at the output terminal of the S-phase solid-state switch is turned off, and the output unit B is turned off. A stage power supply line automatic inspection and emergency line transfer system characterized by switching the connected contact switch to a node connected to the T-phase non-contact switch so that the T-phase power is output to the output unit B.
According to clause 7,
The input/output module is
If an electrical problem occurs in the T-phase solid-state switch and power is not output to the output unit C, the T-phase solid-state switch at the output terminal of the T-phase solid-state switch is turned off, and the output unit C is turned off. A stage power supply line automatic inspection and emergency line transfer system characterized by switching the connected contact switch to a node connected to the R-phase non-contact switch so that the R-phase power can be output to the output unit C.
According to clause 1,
The input/output module is
If an electrical problem occurs in any phase and power is not output to the output unit to which the lighting device is connected, turn off the contact switch at the output terminal of the relevant phase, and connect the contact switch connected to the output unit with the non-contact switch of the other phase. A stage power supply line automatic inspection and emergency line transfer system characterized by switching to a connected node so that the power of the other phase can be output to the output unit.