KR100324214B1 - controlbox of fire extinguisher - Google Patents

Abstract

The present invention relates to an automatic fire extinguishing system capable of extinguishing a fire early in the event of a fire. In particular, the present invention relates to a display means control device for indicating each detection result to detect and display a fire occurrence.

In the conventional automatic fire extinguisher system, in the means for the detection display, there is a one-to-one control signal connection relationship between the CPU and the display means as the main control means, the limitation of the CPU control terminal and the PCB design is followed There is a problem.

In the present invention, each display means can be individually controlled through an I ² C data line using a clock and data in order to solve such a problem. Each display lamp is configured to be controllable according to an event detected through the sensing means.

Description

Detection display control device of automatic fire extinguisher control system {controlbox of fire extinguisher}

The present invention relates to an automatic fire extinguishing system capable of extinguishing a fire early in the event of a fire. In particular, the present invention relates to a display means control device for indicating each detection result to detect and display a fire occurrence.

In general, a fire extinguisher is installed to prepare for a fire in a place exposed to a fire risk, such as a kitchen in a home or a kitchen counter in a restaurant.

The fire extinguisher is equipped with a system that automatically detects a fire when a fire occurs, to spray the extinguishing fluid of the fire extinguisher in the early stage of the fire to extinguish the fire, to automatically shut off the valve of the fuel pipe, and to ring a fire alarm.

In general, such an automatic fire extinguisher system is composed of a microprocessor control board, to control the operation of the fire extinguisher in accordance with the detection results from each sensor, it is configured to display the detection results through the respective display means,

Figure 1 is a block diagram schematically showing the configuration of such an automatic fire extinguisher system.

Looking at the composition,

Gas sensor 10 for detecting gas leakage, overheat sensor 20 for detecting overheat, flame sensor 30 for detecting flame in case of fire, and pressure of fire extinguisher Fire detection means comprising a fire extinguisher pressure sensor 40 for detecting;

An operation box 50 for ejecting extinguishing fluid in the extinguisher, a gas circuit breaker 60, an alarm 70 for notifying whether a fire has occurred, an oscillation circuit for supplying system power from a commercial power source ( 80), a battery 90 for supplying emergency reserve power in case of power failure,

Gas leakage display lamp 100 for indicating whether or not gas leakage, overheating display lamp 110 for indicating whether or not overheating, fire generation display lamp 120 for indicating whether or not a fire, and fire extinguisher pressure abnormality Fire extinguisher pressure display lamp 130 for displaying, a preliminary power supply display lamp 140 for displaying whether the battery is abnormal, check lamp 150 for displaying the fault (system), the gas circuit breaker (60) And display means including a gas circuit breaker opening lamp 160 and a gas circuit breaker closing lamp 170 for indicating a state;

After installation or inspection of the system, a reset circuit 180 is configured to reset the system to an operable initial state, and a reset switch 190 for operating the reset circuit 180 and the gas circuit breaker 60 are manually operated. Gas circuit breaker open switch 200 for opening, gas circuit breaker close switch 210 for manually closing the gas circuit breaker 60, and alarm sound for alarm sound generation when the alarm 70 is generated. Mute switch 220 is configured,

And a control unit (CPU) 230 for controlling display of each operation state of the fire detection means and each system through the display means, and controlling each system part according to the occurrence of fire, gas leakage, gas breaker 60, and the like. do.

The automatic fire extinguisher system having such a configuration detects a corresponding accident event through each gas sensor 10, the overheat sensor 20, the flame sensor 30, etc. configured in the fire detection means, and accordingly ,

By operating the operation box 50 in the event of a fire, as well as ejecting the extinguishing liquid material from the fire extinguisher, as well as closing the gas circuit breaker 60, to control the alarm 70 to generate an alarm sound.

In addition, by operating the lamp corresponding to the display means to notify the user.

The automatic fire extinguisher system is reset to the state initially set by the reset circuit 180 when the user selects the reset switch 190 after the initial installation or for the inspection of the system.

Then, the system operation power is supplied through the oscillation circuit 80. When power is not supplied due to a power failure or the like, backup power is automatically supplied from the battery 90 to the system.

Here, the control unit 230 to control the corresponding operation as described above, according to the value input from each sensor configured in the fire detection means, and at the same time to inform the status, the situation through each lamp configured in the display means Bar,

When gas leakage is detected from the gas sensor 10, the gas leakage display lamp 100 is turned on, and when the overheated detection sensor 20 detects an overheated state, the overheat display lamp 110 is turned on. When the flame is detected from the flame sensor 30, the fire generation display lamp 120 is turned on, and when the fire extinguisher pressure is detected from the pressure sensor 40 for detecting the pressure of the fire extinguisher, the extinguisher pressure The display lamp 130 is turned on.

In addition, when an abnormality occurs in the battery 90, the preliminary power indication lamp 14 is turned on, and the gas circuit breaker opening lamp 160 or the gas circuit breaker is closed by recognizing whether the gas circuit breaker 60 is open or closed. The lamp 170 is turned on.

In the automatic fire extinguisher system configured and operated as described above, the gas leakage display lamp 100, the overheat display lamp 110, the fire generation display lamp 120, and the pressure of the fire extinguisher are configured to display a corresponding operation in the controller 230. Controlling the corresponding lamp by outputting control signals to the display lamp 130, the reserve power display lamp 140, the inspection lamp 150, the gas circuit breaker opening lamp 160, the gas circuit breaker closing lamp 170, respectively For this purpose, control terminals corresponding to each lamp should be allocated.

Therefore, since the control unit 230 must allocate the control terminals as many as the number of display lamps configured in the display means, not only the use range is limited, but also the internal arithmetic processing for outputting one-to-one control signals can be complicated.

In addition, the PCB design can not only be constrained to configure the circuit with each lamp.

As described above, in the conventional automatic fire extinguisher system, in configuring the means for detecting and displaying, there is a one-to-one control signal connection relationship between the CPU, which is the main control means, and the display means. There is a problem that follows.

In the present invention, each display means can be individually controlled through an I ² C data line using a clock and data in order to solve such a problem. Each display lamp is configured to be controllable according to an event detected through the sensing means.

In addition, by monitoring the voltage of the battery, which is a preliminary power supply, when the voltage of the battery falls below a certain voltage, it is to provide a charge control circuit that can automatically supply power to charge the battery.

1 is a block diagram schematically showing the configuration of a conventional automatic fire extinguisher control system.

Figure 2 is a circuit diagram showing an embodiment of the detection display control device of the automatic fire extinguisher control system of the present invention.

Detection display control device of the automatic fire extinguisher control system of the present invention,

Detection sensor for fire, gas, pressure of fire extinguisher, operation box for operating fire extinguisher, gas breaker, alarm for sounding alarm, gas breaker switch for manual opening and closing of gas breaker, system reset In the automatic fire extinguisher system comprising a reset circuit, a reset switch, an alarm sound mute switch, and a control means CPU for detecting an event for a fire from a corresponding sensor and controlling each unit.

The CPU has a control configuration for outputting the control data and the clock for the corresponding display lamp in order to detect an event for a fire, etc. from each configured sensor and to display a warning for the corresponding item,

A display control IC which receives control data and a clock from an I ² C line configured with the CPU, and controls lighting of a corresponding display lamp according to the input clock and the control data;

One or more display lamps are configured for each corresponding event to display the state of each sensor and the corresponding operation unit and the inspection state of the system.

When the voltage of the battery is monitored and falls below the reference voltage by comparing with a predetermined reference voltage, the battery detection unit notifying the CPU of the detection result and the battery voltage state recognized by the battery detection unit. According to the battery charge control signal output from the CPU, the battery charge control unit for operating the battery charge control is characterized in that it further comprises.

The present invention having such a configuration uses a display control IC to which I ² C, which is capable of serial data transmission, uses a plurality of display lamps configured by using a serial data line (SDA) and a serial clock line (SCL) in a CPU. It is characterized by being able to control

The configuration and detailed operation thereof will be described with reference to FIG. 2.

Figure 2 shows an embodiment of the automatic fire extinguisher control system to which the present invention is actually applied, the specific configuration of a fire extinguisher control system such as a sensor, an operation box, a gas circuit breaker is not shown.

In the automatic fire extinguisher control system,

CPU 300 for generating and outputting control data and a clock for controlling a corresponding display lamp for displaying a warning corresponding to a signal input from a sensor;

Display control to receive the clock and operation control data corresponding to the display lamp through the serial clock line (SCL) and the serial data line (SDA) with the CPU 300, and control the lighting according to the received control data. IC 400,

Gas leakage indication lamp (LED1), overheating indication lamp (LED2), fire occurrence indication lamp (LED3), fire extinguisher pressure indication lamp, which are operated by the control signal output from the display control IC and operated according to the generated event. (LED4), spare power indicator lamp (LED5), inspection lamp (LED6), gas circuit breaker opening lamp (LED7), gas circuit breaker closing lamp (LED8),

Manual switch including a reset switch (S1) for initializing the system, a gas breaker open switch (S2) for opening the gas circuit breaker, a mute switch for alarm silence (S3), and a gas circuit breaker close switch (S4) for closing the gas circuit breaker. Wealth,

A reset circuit 500 for generating a reset signal of the CPU 300 in accordance with the switching state of the reset switch S1,

A battery detection unit 700 that monitors the battery 600 and the voltage of the battery 600 and notifies the CPU 300 when a voltage drop occurs below a predetermined reference voltage;

It includes a battery charge control unit 800 for controlling the charging of the battery 600 receives the battery charge control signal output from the CPU 300 according to the result detected by the battery detection unit 700.

Reference numerals R1 to R21 are resistors, C1 to C12 are capacitors, D1 to D3 are diodes, ZD1 and ZD2 are zener diodes, Q1 to Q4 transistors, and BD1 are bridge diodes.

Referring to the operation of the embodiment of the present invention having such a configuration as follows.

First, the control operation of the display lamp will be described.

The CPU 300 recognizes the detection result input from the detection sensor and generates a clock and control data corresponding to the display lamp to be controlled so as to turn on and control the corresponding display lamp. Output is via SDA line and SCL line.

The display control IC 400 receives a clock and control data input from a corresponding line, recognizes a display lamp to be controlled, and outputs a lighting control signal to a corresponding display lamp.

For example, when gas leakage is detected, the CPU 300 generates a clock corresponding to the gas leakage display lamp LED1 and generates control data for lighting and outputs it to the display control IC 400. The display control IC 400 recognizes this and turns on the gas leakage display lamp LED1 to notify the gas leakage.

Since eight display lamps can be controlled through the two serial lines, the number of control terminals for controlling the display lamps in the CPU 300 can be reduced.

In this case, when the user selects the reset switch S1 of the manual switch unit, the reset circuit 500 is operated to give a reset signal to the reset terminal of the CPU 300. Thus, the CPU 300 is reset and the gas circuit breaker is reset. Open switch (S2), alarm mute mute switch (S3), gas circuit breaker close switch (S4) is a manual switch that is on / off operation by the user's selection, the operating state of the CPU 300 recognizes the corresponding The operation will proceed.

On the other hand, while the battery detection unit 700 continuously monitors the voltage of the battery 600 used as a reserve power supply, when the voltage drops below a predetermined voltage (15V), it is notified to the CPU 300.

When the CPU 300 recognizes this, the battery charge control unit 800 outputs a battery charge control signal. Accordingly, the battery charge control unit 800 charges the battery 600.

That is, when the battery voltage drops below 15V, the CPU 300 outputs the battery charge control signal output to the battery charge control unit 800 to a high level. Accordingly, the transistor of the battery charge control unit 800 is output. Q3 is turned on.

As the transistor Q3 is turned on, the transistor Q4 is turned on, so that the rectified power is supplied to the battery 600 through the bridge diode BD1 to charge the battery 600.

By applying the present invention as described above, the control terminal of the CPU configured for the control of a plurality of display lamps can be reduced, the utilization of the CPU is increased, and the circuit is simplified to simplify the PCB design.

In addition, since battery charging is performed when the battery falls below a predetermined voltage, it is possible to prevent battery life shortening due to battery overcharge and overdischarge.

Claims (2)

A number of sensors for detecting the occurrence of fire, gas and pressure of the fire extinguishers and the system operating status, and means for automatically operating the fire extinguisher to perform a series of automatic control operations such as extinguishing and alarming fires; The switch unit includes a gas circuit breaker switch for manually opening and closing the gas circuit breaker, a reset circuit for resetting the system, a reset switch, and an alarm sound mute switch, and detects an event such as a fire from a corresponding sensor. An automatic fire extinguisher system comprising a control means CPU for controlling respective means, The CPU has a control configuration for outputting the control data and the clock for the corresponding display lamp in order to detect an event for a fire, etc. from each configured sensor and to display a warning for the corresponding item, A display control IC which receives control data and a clock from an I ² C line configured with the CPU, and controls lighting of a corresponding display lamp according to the input clock and the control data; Sensing display control device of the automatic fire extinguisher control system, characterized in that one or more plurality of display lamps are configured for each event in order to display the status of each detection sensor and the corresponding operation unit and the inspection status of the system. The battery detection unit of claim 1, wherein the battery detection unit monitors a voltage of the battery, and compares the detection result to the CPU when the voltage falls below the reference voltage in comparison with a predetermined reference voltage. And a battery charge control unit configured to operate and execute battery charge control in accordance with a battery charge control signal output from the CPU according to a state.