KR100877420B1 - Repeater of fire managing system monitoring detector condition and method for managing fire thereof - Google Patents

Abstract

A repeater of fire managing system monitoring detector condition and a fire managing method thereof are provided to minimize degradation of a semiconductor device and to extend lifetime of a detector by discharging the detector through a periodic ground. A repeater(20) of fire managing system comprises a plurality of input parts, a communications part, and a control part. A detector(10) is connected to the input parts. The input parts receive each detection signal from the detectors. The communications part is connected to a receiver(30), and transmits/receives signals. The control part calculates intensity of a current of the detection signal, and receives a warning signal corresponding to a second fire detection signal from the receiver, and outputs a fire warning.

Description

Repeater of fire managing system monitoring detector condition and method for managing fire

The present invention relates to a fire management system and a fire management method, and more particularly, to a repeater of a fire management system for monitoring the operating state of the fire detector and a fire management method thereof.

In recent years, various buildings such as business, residential, etc. are becoming taller, more complex, and larger, and accordingly, a fire management system has been installed for the purpose of monitoring and managing a fire that may occur at any time.

Fire management system can be divided into P (Proprietary) type system and R (Recode) type system according to the form of signal transmission between detector and receiver. The P-type system wires the receiver and the detector for each line, and the R-type system uses a transmission technology such as a time division method to transmit signals of multiple lines to the same signal line. R-type system is economical because there are fewer lines than P-type system, it is possible to lengthen the length of the line, it is easy to expand or relocate, display the fire generating mechanism numerically, and transmit signal clearly. . Such an R-type system has a configuration in which a detector and a receiver are connected to each other through a repeater.

However, when the conventional R-type system receives a signal from the receiver through a repeater due to a malfunction of the detector, it recognizes that a fire has occurred where the malfunctioning detector is located, generates a fire alarm and performs a control operation necessary for extinguishing the fire. .

The causes of the malfunction of the detector are as follows. First, the detector consists of several kinds of semiconductor devices and various sensors. Such a sensor is operated by receiving operating power from the outside, which may cause deterioration of the internal semiconductor device due to continuous application of power to the detector, and malfunction of some semiconductor devices due to static electricity. Such degradation or malfunction of the semiconductor element is the cause of the malfunction of the detector.

In addition, deterioration of semiconductor elements and static electricity shorten the life of the sensor.

Accordingly, a first object of the present invention is to suppress the occurrence of an alarm regardless of fire due to malfunction of the detector.

A second object of the present invention is to minimize the malfunction of the detector and to extend the life of the detector.

In order to achieve the above object, the present invention provides an input process of receiving a sensing signal from a plurality of detectors, a calculation process of calculating the intensity of the current of the sensing signal, and the sensing signal according to the calculated intensity of the current. A fire management method using a detector state monitoring comprising a determination process of determining whether the first signal is a malfunction or a second signal by fire detection, and a pass process of not generating a fire alarm in the case of the first signal as a result of the determination. to provide.

In the fire management method according to the present invention, the determination process is determined as the first signal when the intensity of the current is less than or equal to the threshold value, and determined as the second signal when it is greater than the threshold value.

In addition, the fire management method according to the present invention, the output process of outputting the primary fire detection signal to the receiver when the second signal as a result of the determination, and receiving process of receiving a confirmation signal for the primary fire detection signal from the receiver And a verification process for re-executing the input process, the calculation process, and the determination process with respect to a specific detector that outputs the second signal according to the confirmation signal, and a fire alarm in the case of the first signal as a result of the determination of the verification process. It further comprises a pass process that does not generate.

In the fire management method according to the present invention, when it is determined that the verification process is the second signal, an output process of outputting a second fire detection signal to the receiver, and receiving an alarm command signal from the receiver to output a fire alarm It is configured to further include an alarm process.

And the fire management method according to the present invention is configured to further include a discharge process for periodically discharging the detectors.

The present invention provides a repeater of a fire management system including an input unit, a communication unit, and a control unit as a repeater of a fire management system that mediates the connection of a plurality of detectors and a receiver. The input unit is connected to the detectors, and receives the detection signal from the detectors, respectively. The communication unit is connected to the receiver to transmit and receive a signal. The controller calculates the current intensity of the detection signal, and determines whether the detection signal is the first signal due to malfunction or the second signal based on the fire detection according to the calculated current intensity. If not fire alarm.

According to the present invention, the repeater determines the current strength of the signal output from the detector to determine whether it is a signal due to malfunction or a signal by fire detection, and transmits a signal by fire detection to the receiver, irrespective of fire due to a malfunction of the detector. The alarm can be suppressed from occurring. In particular, after the repeater outputs the first fire detection signal to the receiver, it goes through the verification process requested by the receiver to determine whether the detection signal for detecting the fire is output again by the specific detector that detected the fire, and then to the receiver. Since the output of the fire detection signal is determined, it is possible to suppress the occurrence of an alarm regardless of fire due to a malfunction of the detector.

The repeater provides a stable power supply to the detector through a power supply such as a switching mode power supply (SMPS) and discharges the detector periodically through the ground, thereby deteriorating the semiconductor device and malfunctioning of some semiconductor devices due to static electricity. It can minimize the occurrence and extend the life of the detector.

Hereinafter, with reference to the accompanying drawings will be described in detail an embodiment of the present invention.

Fire management systems

The fire management system 100 according to the present embodiment is an R-type system including a detector 10, a repeater 20, and a receiver 30, as shown in FIGS. 1 and 2. The detector 10 detects whether a fire has occurred and outputs a detection signal to the repeater 20. The repeater 20 detects an operating state of the detector 10 from the sensed signals received from the detectors 10 and transmits the detected state to the receiver 30. And the receiver 30 alerts the person concerned of the fire object in accordance with the signal received from the repeater 20, and performs a control function for the detector 10 and the repeater 20.

In this case, the detector 10 may be configured to include a sensor for detecting whether a fire has occurred, and an indicator or alarm indicating whether a fire has occurred. At least one of a heat sensor, a smoke sensor, a gas sensor, and an infrared sensor may be used as the sensor.

In particular, the repeater 20 according to the present embodiment monitors the state of the detector 10, and controls the input unit 21, the communication unit 23, the memory unit 25, the control unit 27, and the output unit 29. It is configured to include. The repeater 20 further includes a power supply unit 22 and a discharge unit 24.

The input unit 21 has a plurality of input terminals to which the plurality of detectors 10 are connected, and receives sensing signals from the detectors 10, respectively. The input unit 10 according to the present exemplary embodiment has 32 input terminals, and up to 25 detectors 10 may be connected to one input terminal. (The maximum value of n in FIG. 1 is 25).

The communication unit 23 is connected to the receiver 10 to transmit and receive signals in a unique communication method. At this time, the communication method may use RS-485 (Recommended Standard-485) or RS-422 (Recommended Standard-422). For example, MAX 485 can be used as the communication chip of the communication unit 23. MAX 485 is capable of low noise communication at low voltage, and can be transmitted and received with the receiver 30 up to 3km, although the transmission and reception distance may vary depending on the usage environment.

At this time, the voltage on the communication port of the communication unit 23 is 5V or less, preferably 3V or less. The reason is that when 5V or more is used as the voltage on the communication port, the communication circuit of the communication unit 23 may be damaged.

The memory unit 25 includes a program required for monitoring the operation of the repeater 20, one or more volatile memory devices and nonvolatile memory devices capable of storing data generated during the execution of the program. In particular, the memory unit 25 stores a program required to perform state monitoring of the detector 10 and data generated during execution of the program. In addition, the memory unit 25 stores a discharge program for periodically discharging the sensors 10.

The control unit 27 is a microprocessor that performs the overall control operation of the repeater 20. In particular, the control unit 27 prevents a fire alarm output due to a malfunction of the detector 10 through the state monitoring of the detector 10.

And the output unit 29 is connected to the alarm 40, such as alarm, visual alarm, siren, various relays, buzzer and the like. At this time, the seedlings are preferably connected to the output unit 29 within five.

In particular, the control unit 27 performs the following functions to monitor the state of the detector 10. First, the control unit 27 calculates the strength of the current of the detection signal input through the input unit 21. The control unit 27 determines whether the detection signal is a first signal due to a malfunction or a second signal due to a fire detection according to the calculated current intensity. If the determination result is the first signal, the control unit 27 ignores the detection signal and does not generate a fire alarm. However, when the determination result is the second signal, the control unit 27 outputs a fire detection signal to the receiver 30 through the communication unit 23.

At this time, the control unit 27 determines whether the input detection signal is the first signal or the second signal, based on the threshold value. In this case, the threshold may be set to a specific value or may be set to a predetermined range. The reason why the threshold value can be set in this way is that the signal for the fire detection among the detection signals output from the detector 10 has a larger current intensity than the signal due to malfunction, and has a certain constant current strength.

Therefore, when the specific value is set as the threshold value, the control unit 27 determines that the first signal when the current intensity of the input detection signal is less than or equal to the threshold value and the second signal when the threshold value is higher. When the predetermined range is set as the threshold value, the control unit 27 determines that the second signal is within the first signal and the threshold value (the predetermined range) when the current intensity of the input detection signal is out of the threshold (the predetermined range). . In the present embodiment, an example of using a specific value as a threshold value has been disclosed.

On the other hand, if it is determined that the input detection signal as the second signal, the control unit 27 outputs the primary fire detection signal to the receiver 30 through the communication unit 23. The receiver 30 receives a confirmation signal for the primary fire detection signal through the communication unit 23. The control unit 27 performs a verification process of determining again whether the detection signal output from the specific detector 10 outputting the second signal is the first signal or the second signal according to the received confirmation signal.

If the verification result is the first signal, the control unit 27 ignores the detection signal and does not generate a fire alarm. On the other hand, when the verification result is the second signal, the controller 27 outputs the secondary fire detection signal to the receiver 30. The controller 27 receives an alarm command signal corresponding to the secondary fire detection signal from the receiver 30 and outputs a fire alarm.

In this case, the control unit 27 may output a fire alarm sound through the alarm unit 40 connected to the output unit 29. Alternatively, the controller 27 may output a fire alarm sound through an alarm included in the corresponding detector 10.

Meanwhile, the repeater 20 according to the present embodiment further includes a power supply unit 22 for supplying power to each part of the repeater 20 and the detector 10 connected to the repeater 20. As the power supply unit 22, a switching mode power supply (SMPS) of a switching method capable of supplying a constant voltage and a constant current may be used as the main power source. SMPS receives AC power of 100V or 220V and provides DC 24V to each part of the repeater 20 and the detector 10. By using the SMPS in this way, the power supplied to the detector 10 can be kept constant, thereby extending the life of the detector 10. In addition, the power supply unit 22 may be configured to further include an auxiliary power supply for supplying power in case of power failure.

In addition, the repeater 20 according to the present embodiment further includes a discharge unit 24 connected to the power supply unit 22. The discharge part 24 periodically discharges the magnetic and electric charges remaining in the detector 10 under the control of the controller 27. In this way, by discharging the magnetic and charge remaining in the detector 10 through the ground, it is possible to suppress the malfunction of the detector 10 and to extend the life.

In addition, the repeater 20 according to the present exemplary embodiment may further include an internal power stabilization circuit, a noise filter, a reverse voltage blocking circuit, and the like.

In addition, when the receiver 30 receives the second fire detection signal following the first fire detection signal, the receiver 30 outputs an alarm command signal to the repeater 20 that outputs the second fire detection signal, and detects a specific detector (fire). 10) Control so that rapid fire suppression can be made at the place where it is installed. In addition, the receiver 30 detects a fire through a screen of the display unit and displays a fire occurrence place where the detector 10 is installed, the number of the repeater 20 to which the detector is connected, and subscriber information.

Although not shown, the receiver 30 may transmit a fire occurrence message to the wired or wireless terminal of the administrator through wired or wireless communication. In addition, the receiver 30 may control fire suppression equipment such as a fire hydrant, a sprinkler, a fire shutter, and a smoke control system.

How to manage fire by monitoring detector status

The fire management method of the fire management system 100 according to the present embodiment will be described with reference to FIGS. 1 to 3 as follows. 3 is a flowchart illustrating a fire management method according to the present embodiment.

First, when the detection signal is output from the detector 10 in step S51, the repeater 20 receives the detection signal through the input unit 21 in step S53.

Next, in step S55, the repeater 20 calculates the strength of the current of the input sensing signal. Subsequently, in step S57, the repeater 20 determines whether the calculated current intensity is greater than or equal to a threshold value.

If the determination result of step S57 is less than the threshold value, the repeater 20 ignores the input detection signal and receives a new detection signal in step S51 and performs again from step S53. That is, the repeater 20 does not perform the process for the fire alarm by determining the input detection signal as the first signal.

On the other hand, if the determination result of step S57 is greater than the threshold value, in step S59 repeater 20 outputs the primary fire detection signal to the receiver 30 (m = 1). That is, the repeater 20 determines the input detection signal as the second signal and outputs a primary fire detection signal to the receiver 30.

Next, in step S61, the receiver 30 receives a fire detection signal, and determines whether the fire detection signal received in step S63 is a secondary fire detection signal.

When the determination result of step S63 is not the second fire detection signal, that is, the first fire detection signal, the receiver 30 outputs a confirmation signal to the repeater 20 in step S65. The reason why the receiver 30 outputs the confirmation signal to the repeater 20 is that the detection signal determined by the repeater 20 as the second signal may be a signal due to a malfunction of the detector 10. Therefore, in order to confirm whether the second signal is output from the specific detector 10 which outputs the second signal, the receiver 30 outputs a confirmation signal to the repeater 20.

When the repeater 20 receives the confirmation signal in step S66, a verification process for performing steps S53 to S63 is performed again. That is, in step S53, the repeater 20 receives a detection signal from the specific detector 10 that outputs the second signal. Subsequently, in step S55, the repeater 20 calculates the strength of the current of the input sensing signal. Subsequently, in step S57, the repeater 20 determines whether the calculated current intensity is greater than or equal to a threshold value. If the determination result of step S57 is less than the threshold value, the repeater 20 ignores the input detection signal and receives a new detection signal in step S51 and performs again from step S53. That is, when the first second signal is determined but the detection signal input during the verification process is determined as the first signal, the repeater 20 does not perform a process for a fire alarm.

However, if the determination result of step S57 is greater than the threshold value, in step S59 repeater 20 outputs a secondary fire detection signal to the receiver 30 (m = 2). That is, the repeater 20 determines the input detection signal as the second signal and outputs the second fire detection signal to the receiver 30.

Next, the receiver 30 receives the second fire detection signal in step S61, and determines whether the fire detection signal received in step S63 is the second fire detection signal.

Since the determination result of step S63 is the second fire detection signal, the receiver 30 outputs an alarm command signal to the repeater 20 in step S67.

When the alarm command signal is received in step S69, the repeater 20 outputs a fire alarm through the alarm 40 in step S71. Of course, although not shown, the receiver 30 alerts the person concerned of the fire to the person concerned, and whether or not the fire occurred through the display unit or the external display device installed in the receiver 30 and the position of the detector 10 that detected the fire. Is displayed.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented specific examples to aid understanding, and are not intended to limit the scope of the present invention. In addition to the embodiments disclosed herein, it is apparent to those skilled in the art that other modifications based on the technical idea of the present invention may be implemented.

1 is a block diagram showing a fire management system according to an embodiment of the present invention.

2 is a block diagram showing the configuration of the repeater of FIG.

3 is a flowchart illustrating a fire management method according to an embodiment of the present invention.

Description of the main parts of the drawing

10 detector 20 repeater

21: input unit 23: communication unit

25 memory unit 27 control unit

29: output unit 30: controller

40: alarm 100: fire management system

Claims (10)

delete delete delete The repeater includes: an input process of receiving sensing signals from a plurality of detectors, respectively; The repeater is a calculating step of calculating the strength of the current of the sense signal; The repeater determines that a detection signal of which the calculated current intensity is less than or equal to a threshold value among the detection signals is a first signal due to a malfunction, and a detection signal that is greater than or equal to the threshold value is determined as a second signal by fire detection. and; The repeater is a pass process that does not generate a fire alarm when the determination is the first signal; The repeater outputting a primary fire detection signal to a receiver when the determination result is a second signal; The repeater receiving a confirmation signal for the primary fire detection signal from the receiver; The repeater includes a verification process of re-executing the input process, the calculation process, and the determination process with respect to a specific detector outputting the second signal according to the confirmation signal; The repeater is a pass process that does not generate a fire alarm, when the verification result is the first signal; The repeater outputting a second fire detection signal to the receiver when the verification result is the second signal; The repeater is a fire management method using a detector state detection comprising a; alarm process for outputting a fire alarm by receiving an alarm command signal from the receiver. The method of claim 4, wherein Discharge process for periodically discharging the detector; Fire management method using a sensor state monitoring, characterized in that it further comprises. delete delete delete Repeater of fire management system that mediates the connection of multiple detectors and receivers, A plurality of input units to which the detectors are connected and which receive sensing signals from the detectors, respectively; A communication unit connected to the receiver and transmitting and receiving a signal; The intensity of the current of the detection signal is calculated, and among the detection signals, the detection signal whose strength of the calculated current is equal to or less than a threshold value is determined as a first signal due to malfunction, and the detection signal that is greater than the threshold value is determined by fire detection. Judging by the second signal, If it is determined that the first signal is a fire alarm, Outputting a primary fire detection signal to a receiver as a result of the determination, receiving a confirmation signal for the primary fire detection signal from the receiver; Verifying whether the detection signal output from the specific detector outputting the second signal is a first signal or a second signal according to the confirmation signal, If the verification result is the first signal, without generating a fire alarm, And a control unit outputting a second fire detection signal to the receiver when the verification result is the second signal, and receiving an alarm command signal corresponding to the second fire detection signal from the receiver to output a fire alarm. Repeater of fire management system characterized by the above-mentioned. The method of claim 9, A power supply unit for supplying power to each part of the repeater and the detectors; And a discharge unit connected to the power supply unit and periodically discharging the detectors under the control of the control unit.

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