KR102062302B1 - Cross circuit supervisory machine used in firefighting tracks and the method of operating the same - Google Patents

Abstract

The present invention relates to a method of driving a fire fighting equipment operated in accordance with the operation of the cross-circuit detector and the fire detector used in the fire line.
Cross-circuit detector for a fire line according to an embodiment of the present invention, the fire detection cross-circuit detector for detecting a fire and operating a sprinkler, a fire fighting device in response to the fire detection signal, in the same area It is installed by attaching two smoke detectors of detection type. The smoke detector recognizes that a fire has occurred when infrared rays are blocked in the closed area by the smoke, and transmits a fire signal. If one or more of the devices fail to operate due to a malfunction of the device, the smoke detector and an electrically connected notification device (e.g., a siren or a bell) operate simultaneously to prevent the occurrence of fire in the enclosed area in a wired or wireless manner. Notifies the watcher or user of the, the two smoke detectors work simultaneously In this case, a preaction valve or a sprinkler, which is an automatic starting device, is operated to perform a fire fighting operation. And a B circuit line and a common circuit line electrically connected to the second smoke detector, wherein the first and second smoke detectors are RFID-based, and a transceiver is a wake-up using a MCU (Main Control Unit). -In-Sensor method generates infrared rays by periodically giving signal to infrared IR, and is not blocked by smoke generated by fire in photo diode which periodically receives infrared rays generated from the infrared IR. If not, fire sprinkler or preaction valve will be activated and sprayed gas or water to extinguish fire. It may be characterized in that less is available.

Description

Cross-circuit detector used in fire tracks and its operation method {CROSS CIRCUIT SUPERVISORY MACHINE USED IN FIREFIGHTING TRACKS AND THE METHOD OF OPERATING THE SAME}

The present invention relates to a cross-circuit detector for a fire line and a method of operating the same.

The cross-circuit method is a method to prevent the malfunction of the equipment operating in conjunction with the detector. The cross-circuit method is called so-called X wiring because it is installed to cross two circuits. (Cross-circuit system as defined in Article 18 [Spring Cooler Facility, Sound System, and Start-up Device of Rules for Fire Technology Standards)) Install and transmit electric power to customers by installing electric power distribution cable in underground pipe installed Can be used.

Usually, a fire detection device is used for the purpose of sounding an alarm when a building fire occurs to prevent human injury.

The fire detection device as described above is mandatory to be installed in a building of a predetermined size or more, and is used in kitchens, karaoke rooms, PC rooms, large buildings, and the like, which handle hot air balloons such as gas ovens and gas stoves.

However, the conventional fire detection device connects a plurality of fire detection devices installed in a certain area of the building with a single circuit, so in the event of a fire, the building's management office only alarms that a fire has occurred in the area. There is a problem that the administrator or the user to go to the fire scene to find the naked eye because it is not known which of the fire detection device has been operated.

In order to cope with this problem and to cope with problems caused by the operation of gas or water injectors, which are indiscriminate firefighting devices, the fire protection system can be called only when two fire detectors are installed and the two fire detectors operate simultaneously. It is required by law to open a ready-acting water flow detector or a Japanese-made open valve.

However, under the current cross-circuit system, it is difficult to determine whether a fire has actually occurred, and it is difficult to make an accurate judgment because many devices use a heat sensing method.

That is, the easiest way to operate the heat sensing method is to install a thermocouple, and when the temperature of the thermocouple reaches a few degrees or more, it is designed to open the fire fighting equipment or the ready-operated water flow detector or the Japanese-made open valve. It is.

For example, when the temperature measured by the thermocouple is a few degrees or more can be set so that it can be determined as a fire signal, it may have a feature that can not output an accurate response value according to the situation of the circuit connected to the thermocouple.

Registered Utility Model Publication No. 20-0192756 (Two-stage output fire detector for cross circuit)

The present invention has been invented to solve the above problems, under the system that is to operate the fire-fighting equipment in connection with the current two fire detection devices to check the occurrence of fire through the periodic signal generation, It is an object of the present invention to provide a cross-circuit detector, which is a kind of fire-fighting system that enables the operation of a fire-fighting device associated with a fire detection device capable of immediate response when it is determined that the fire is judged according to the occurrence of the periodic signal. It is done.

In addition, it is possible to make an accurate judgment on the occurrence of abnormal signals during the operation of the fire detectors, which periodically monitors the operation, and to operate the cross-circuit detectors used in the fire line to immediately achieve the mobilization of the fire fighting means. Another purpose is to provide.

Cross circuit detector used in the fire line of an embodiment according to the present invention for achieving the above object, a fire detection cross circuit for detecting a fire and operating a sprinkler which is a fire fighting device in response to the fire detection signal In the detector, two smoke detectors of the photoelectric sensing method are installed in the same zone, and the smoke detector recognizes that a fire has occurred when infrared rays are blocked in an area closed by the smoke when smoke is generated and detects a fire signal. If one or more of the two smoke detectors do not operate due to a malfunction of the device, the one smoke detector and an electrically connected alarm device (eg, siren or bell) operate simultaneously to generate a fire. Inform the monitor or user of the enclosed area in a wired or wireless manner, When two smoke detectors are operated at the same time, a preaction valve or sprinkler, which is an automatic starting device, is operated to perform a fire fighting operation. The fire occurrence cross-circuit detector is electrically connected to the first smoke detector. It includes a connected A circuit line and a common circuit line, and includes a B circuit line and a common circuit line electrically connected to the second smoke detector, wherein the first and second smoke detector is an RFID method, the transceiver is a MCU (Main) By using a control unit to generate infrared rays by periodically giving a signal to the infrared IR in a wake-on-sensor method, and to the smoke generated by the fire in the photodiode that periodically receives the infrared rays generated by the infrared IR If it is blocked by infrared rays and it does not receive infrared rays, it generates a fire signal and simultaneously operates a sprinkler or preaction valve. Turn it to the gas or water injection may be possible, it characterized in that the fire extinguishing operation.

In one embodiment of the present invention, when the two detectors are operating at the same time,

The first and second detectors may mean when the infrared signal generated at the same period is cut off to transmit a fire generation signal from the photodiode to the receiver.

In the operating method of the cross-circuit detector for detecting a fire signal and calculating a fire extinguishing signal according to an embodiment of the present invention, the method comprising the steps of: (a) driving two first and second detectors in the same zone operated based on RFID; (s10); and (b) giving a periodic signal to the infrared IR of the infrared generating unit of the first and second detectors (s20) to generate infrared rays; and (c) receiving the infrared signal from the photodiode. (s30); and (d) if the first and second detectors do not receive the infrared signal at the same period, the fire is recognized through a common line with the A circuit wire electrically connected to the first detector. Transmitting a signal and transmitting a fire signal through a common line with a B circuit wire electrically connected to the second detector (s40); And (e) receiving a fire signal at the same cycle from the first and second detectors located in the same zone, recognizes that a fire has occurred, and activates a ready-acting water flow detector or a Japanese open valve to inject water or gas from the fire extinguishing system. Including the step (s50); Wherein, the first and second detectors include a transmitter and a receiver that operates in an RFID manner, the transmitter includes an infrared IR in the infrared generator, the infrared signal generated by the infrared IR There may be a photodiode for receiving the detection of whether a fire occurs according to the reception signal of the photodiode.

According to an embodiment of the present invention, when one of the first and second detectors does not receive the infrared signal from the photodiode at the same period, the detector may not receive the infrared signal among the first and second detectors. It may be to perform only a function of informing a user or an administrator who manages the first and second detectors by generating a signal from an LED or a buzzer disposed in the receiver.

According to one embodiment of the present invention having the configuration as described above, it can be manufactured by merging into one to suit the installation criteria for the fire detector (this is called an integrated detector), the installation can be simplified.

In addition, it may be possible to respond quickly to a fire while preventing a malfunction that frequently occurred and became a problem. In other words, it is possible to use the photoelectric smoke detector and check periodically whether or not it can receive the signal. Therefore, when the infrared signal is not received at the same time, the signal of fire occurs through the wired / wireless communication network connected to the terminal block. Alternatively, it can be designed to send to the supervisor and open an immediate starting device, i.e. a ready-acting water flow detector or a Japanese-made valve.

This makes it easy to construct and reduce labor costs, has the characteristics that three pipes are required in one pipe, 50% reduction in the frequency of defects can be obtained. In addition, it has a feature that can reduce the cost of repair.

1 is a diagram schematically showing a circuit of a facility operated in a cross circuit manner.
2 is a circuit diagram showing the configuration of a cross-circuit detector according to an embodiment of the present invention.
3 is a block diagram showing the configuration of a fire detector using RFID according to an embodiment of the present invention.
4 is a PCB diagram showing the configuration of the first and second detectors according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings will be described the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is "connected" to another part, this includes not only "directly connected" but also "indirectly connected" with another member in between. do. In addition, when a part is said to "include" a certain component, it means that it may further include other components, without excluding the other components unless otherwise stated.

Hereinafter, with reference to the accompanying drawings will be discussed the configuration of the cross-circuit detector used in the present invention fire line.

The cross circuit method is called X wiring because it is installed to cross two circuits in order to prevent the malfunction of the detector and the equipment operating.

Relevant legislation is specified in the sound system and the actuating device of the sprinkler system, Article 18 of the Rules on Fire Protection Standards.

1 is a diagram schematically showing a circuit of a facility operated in a cross circuit manner.

Referring to Figure 1, the detector detects the fire is the automatic fire detection equipment of the transmission and distribution method, the same function, but when one detector of the operation of the fire extinguishing equipment that is linked to the two circuits do not work, two circuits That is, the detector may be configured to transmit a start output for operating the fire extinguishing system or the fire extinguishing system only when one or more detectors are operated, one for each circuit.

That is, assuming that two detectors A and B are in charge of the same area as shown in FIG. 1, two detectors 50 and 60 are disposed, and the detectors 50 and 60 are separated from the terminal block 90. Can be powered.

After the fire detectors 50 and 60 are installed as described above, the conduction test is performed in a situation in which the fire detectors 50 and 60 are electrically connected through the terminating resistor 70.

When a power supply (eg, 24V) is supplied from the terminal block 90, the final measured voltage is about 20-22V due to the termination resistance electrically connected to the terminal. The reason for conducting the conduction test by terminating the resistance is as follows. If the circuit is connected in series, if it is disconnected in the middle and no voltage is measured by the detector 50 or 60 at the rear, This is because it is difficult to determine whether there is an abnormality in conduction because the voltage is output to the sensors 50 and 60 arranged.

Here, the cross-circuit method is to prevent frequent malfunctions, such as a pre-operated sprinkler system and a carbon dioxide extinguishing system, and two or more fire detectors (50, 60) are installed in an area where a single fire detection is required. This is how the above detectors 50 and 60 operate.

For the above, even if you refer to the fire safety standards (NFSC 103) of the sprinkler facility prescribed by the National Law Information Center of the Administrative Regulations Act on Sprinklers (not shown), the sprinkler in Article 9 (Sound and Starter) The acoustic device and the starting device of the wet and dry water detection device or the equipment using the dry oil and water detection device, when the head is open, the water and water detection device sends a fire signal, and accordingly the sound device is alarmed, Equipment using rainwater detection devices or Japanese-made open valves are required to sound the sound device according to the detection of the fire detector.In this case, the fire detector circuit is cross-circuit type Two or more fire detector circuits are installed in the area in which the valve (preaction valve) is responsible. When detected at the time of to, the way in which the open and ready for operation operated leading detection device made in Japan or release valve) when one of the fire detector circuit detects a fire and provides that the device be such that the alarm sound.

Also in FIG. 1, it can be seen that two circuits A and A (displayed in red) and B circuit (shown in black) are provided and arranged so as to intersect with each other while the two detectors 50 and 60 are arranged so as to cross each other. .

In the fire detector using the cross-circuit circuit of the third and fourth detectors 50 and 60 in this manner, it takes a long time until the operation of the adjacent detectors, which makes it difficult or difficult to quickly respond to the fire extinguishing.

And since the two circuits to be installed separately as shown in Figure 1 has a disadvantage that a lot of installation labor costs.

In other words, two pipes need two third and fourth wires (40, 80), and two detectors are in the same area, so the detector is expensive and two detectors are in the same area. The incidence of defects increases and costs are high.

In other words, even though the fire extinguishing equipment should not operate according to the operation of one fire detector, the cross-circuit detector used for the current fire extinguisher is automatically operated when the fire extinguishing equipment is operated. It also has the disadvantage that the cost of recovery is enormous.

2 is a circuit diagram showing the configuration of a cross-circuit detector according to an embodiment of the present invention.

Referring to FIG. 2, it may include an A circuit wire 10 drawn out from the A circuit and a common line 20 electrically connected to the A circuit wire 10. In addition, the B circuit wire 30 drawn from the B circuit may include a common line 20 electrically connected to the B circuit wire (30). The first detector 110 may be disposed on the wire through which the A circuit wire 10 and the common line 20 pass, as shown in FIG. 2. In the same principle, the second detector 120 may be disposed on a wire through which the B circuit wire 30 and the common line 20 pass.

In this case, the first detector 110 and the second detector 120 may be attached to each other and have a separate circuit configuration to transmit different signals to the terminal block 90, and the signal transmitted to the terminal block 90. It may be prepared to generate an acoustic signal or to operate a starting device or a ready-operated flow detector.

 There are two ways to detect a fire: a way of detecting heat and a way of detecting smoke.

The heat sensing method has the disadvantages described above, and there are ionization smoke detectors and photoelectric smoke detectors as smoke sensing methods.

Among them, a photoelectric smoke detector may be used as the first and second detectors 110 and 120 for a fire according to an embodiment of the present invention.

The photoelectric smoke detector uses a change in the amount of incident light of the photoelectric device as smoke enters the detection unit.

In general, scattered light method is used, and the structural principle is that the light source of the light source lamp is collected in one direction on one side of the dark box where the surrounding light is completely blocked so that the smoke can be made, and the photoelectric element is in the direction of receiving the scattered light of the light beam. When there is no scattering when the air inside the sealed box is attached and the air is clean, the photoelectric device receives no light and no change occurs. However, when the smoke caused by the fire, when the smoke enters into the box in the smoke close, the light particles from the light source lamp causes scattering phenomenon by the smoke particles, the photoelectric element receives a part of the scattered light, the electrical resistance is changed. The photoelectric smoke detector is configured to detect an increase in the current flow due to the decrease in the electrical resistance and to send a signal to the receiver.

In the case of the photoelectric smoke detector, an electrical signal may be required, so it is necessary to prepare for a disconnection caused by a fire. In other words, detecting fire by wire communication can be difficult to effectively deal with emergency situations such as fire.

In addition, when implementing a wireless communication technology such as ZigBee or Bluetooth that requires a continuous supply of energy, the sensor must be driven at all times, so the lifespan of the sensor may be short, and power consumption may increase, leading to a significant drop in energy efficiency.

Photoelectric smoke detection sensor based on RFID (Radio Frequency Identification) used in the present invention, it is possible to build a low-power fire detection network by applying WOR (Wake-On-Radio) wireless communication technique.

The RFID system may include an RFID tag, a reader (reader), and a S / W application that collects and processes RFID information.

3 is a block diagram showing the configuration of a fire detector using RFID according to an embodiment of the present invention.

Referring to FIG. 3, a transceiver may realize a WOS (Wake-On-Sensor) fire detection device by extending a WOR (Wake-On-Radio) wireless communication technique using a MCU (Main Controller Unit). have.

As illustrated in FIG. 3, the transceiver may periodically generate a signal generated from the infrared IR included in the infrared generator in a wake-on-sensor method using a MCU (Main Controller Unit) (s20). As such, the signal generated from the infrared IR may be received by the photodiode (s30). In this case, when smoke occurs, the infrared signal is blocked by the smoke, and when the signal is blocked, the photo diode may not recognize any signal and thus may recognize that the smoke is detected.

The RF module operates in a Wake-On-Radio manner and treats when the smoke is detected and when it is not as different data and transmits it to the receiving unit, and the smoke is smoked only by one of the first and second detectors 110 and 120. When it is detected, as shown in FIG. 3, the light may be output through the LED, or the sound may be output using a buzzer. One of two detectors 110 and 120 may correspond to a case in which a fire signal is generated.

However, when the two detectors 110 and 120 operate simultaneously, a fire-prevention water flow detection device or a Japanese-made open valve (preaction valve) that is a fire extinguishing device may be operated because the fire occurrence condition is satisfied.

4 is a PCB diagram showing the configuration of the first and second detectors according to an embodiment of the present invention.

Referring to FIG. 4, the transmitter module of the first and second detectors includes an infrared ray generator 210, a photodiode 220 for receiving infrared rays generated by the infrared ray generator 210, and a photodiode 220. It may include a chip antenna 230 for transmitting and receiving a signal, the MCU 250 for controlling the RFID-based transceiver module and an RF module 240 associated with signal transmission and reception.

An active tag may operate in the transmitter module, and when a transmission signal is sent by the operation of the active tag, the receiver module may receive this signal and discriminate against a fire signal.

In order to perform such an operation, the A and B circuits including the first and second detectors 110 and 120 may be operated to operate in a state where the cross circuit detector is operated (S10).

That is, when smoke is generated, the infrared rays generated by the infrared ray generator 210 are blocked by the smoke so that no signal can be received from the photodiode 220. When such an operation is performed in the transceiver module, the transmitter generates a infrared ray by periodically transmitting a signal to the infrared IR from the infrared generator 210 using a wake-on-sensor method using the MCU 250 (s20). ). The RF module 240 may transmit and receive a signal generated by the photodiode 220 through the chip antenna 230, and the buzzer 310 may ring through the communication module (eg, RS-232) in the receiver module. Alternatively, the fire signal may be generated by emitting the LED 320 (S40).

Of course, when the first and second detectors 110 and 120 generate the infrared undetected signal in the same region at the same period, the fire action is performed by opening the ready-operated water flow detector or the Japanese-made open valve connected to the receiver module. It may occur as described above (S50).

While the invention has been shown and described with respect to particular embodiments, it will be appreciated that various changes and modifications can be made in the art without departing from the spirit of the invention provided by the following claims. It will be self-evident for those of ordinary knowledge.

10: A circuit wire 20: Common line
30: B circuit wire 40: third wire
50: third sensor 60: fourth sensor
70: termination resistor 80: fourth wire
90: terminal block 110: first detector
120: second detector 210: infrared ray generating unit
220: photodiode 230: chip antenna
240: RF module 250: MCU
310: Buzzer 320: LED
330: communication module

Claims (4)

In the fire detection cross-circuit detector for detecting a fire and in response to the fire detection signal to operate a sprinkler, a fire fighting device,
In the same zone, two photoelectric sensing sensors are installed.
The detector recognizes that a fire has occurred when the infrared rays are blocked in the same area by the smoke and transmits a fire signal,
When one or more of the two detectors do not operate due to a failure of the device, a notification device electrically connected to the one detector operates simultaneously to notify the monitor or user of the same area in a wired or wireless manner.
When the two detectors are operating at the same time, the preaction valve or sprinkler, which is an automatic starting device, is operated to perform a fire fighting operation.
The fire detection cross circuit detector,
A circuit wire and a common circuit wire electrically connected to the first detector,
A B circuit wire and a common circuit wire electrically connected to the second detector,
When one circuit detector is activated, the fire extinguishing system is not operated. Two or more detectors must be operated, one for each circuit. Configured to send start output,
The first and second detectors are RFID-based.
Transceiver is a Wake-On-Sensor method using a MCU (Main Control Unit) to periodically give a signal to the infrared IR to generate infrared light, a photodiode (photo diode) that periodically receives the infrared rays generated by the infrared IR If the light is blocked by the smoke generated by the fire and is not irradiated with the incident dose of the optoelectronic device, the fire is recognized as a fire and the fire signal is generated and the sprinkler or preaction valve is operated at the same time. Fire extinguishing is possible by spraying
The first and second detectors detect a fire when the infrared signal generated at the same period is blocked and transmits a fire generation signal from the photodiode to the receiving unit. Fire detection cross-circuit detector that activates the sprinkler.
delete In the operating method of the fire detection cross-circuit detector for detecting a fire and operating a sprinkler as a fire fighting device in response to the fire detection signal,
(a) establishing a low power fire detection network using an RFID-based wireless communication technique and driving two first and second detectors in the same area (s10);
(b) generating an infrared ray by giving a periodic signal to an infrared ray IR generator of the first and second detectors;
(c) receiving the infrared signal at a photodiode (s30);
(d) If the first and second detectors do not receive infrared signals in the same period, it is recognized that a fire has occurred and transmits a fire signal through a common line with the A circuit wire electrically connected to the first detector, and When the fire signal is transmitted through a common line with the B circuit wire electrically connected to the second detector, and when one of the first and second detectors does not receive the infrared signal at the same period, the first diode Generating a signal from an LED or a BUZZER disposed in a receiver of a detector which does not receive an infrared signal among the first and second detectors, and notifying a user or a manager and an industrial worker who manage the first and second detectors (s40); And
(e) When the first and second detectors located in the same area receive a fire signal at the same cycle, the fire is recognized and the ready-operated water flow detector or Japanese open valve is operated to inject water or gas from the fire extinguishing system. Step s50;
Including but not limited to:
The first and second detectors include a transmitter and a receiver operating in an RFID manner, the transmitter includes an infrared IR in an infrared ray generator, and a photodiode for receiving an infrared signal generated by the infrared IR is present. A method of operating a fire detection cross-circuit detector for detecting fire according to a received signal of a diode and for operating a sprinkler as a fire fighting device in response to the fire detection signal. delete

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