KR20220029959A - Fire detecting appratus and method - Google Patents

Abstract

A fire detection device and method are disclosed. According to an embodiment of the present invention, a fire detection device includes: a temperature detection element for detecting a temperature for determining whether a fire has occurred; a mode input device including at least one switch for selecting one mode from among a plurality of heat detection modes; and a controller which determines whether the fire has occurred based on the temperature and the one mode. The present invention provides fire detection technology which integrally provides the plurality of heat detection modes.

Description

FIRE DETECTING APPRATUS AND METHOD

The following embodiments relate to a fire detection method and apparatus.

By integrating the two systems after installing automatic fire extinguishing equipment such as sprinklers, a facility that automatically detects fire in a building or indoors, it is possible to prevent a fire from developing into a large-scale fire by detecting the fire at an early stage. there is.

Automatic fire detection equipment consists of a fire detector that detects a fire, a manual operation box that transmits a fire report by manually operating it when a fire is discovered, or a manual transmitter and receiver that receives the fire report and controls various facilities. It is implemented as a detector of various types such as a detector.

Conventional heat detectors require different detectors for each operating point, so the designer of a building has to read the design rules whenever installing the detector at a specific location, and the contractor has to have a heat sensor with different operating points according to the site design. .

Therefore, when using the conventional thermal sensor, there is a problem in that inventory management is difficult, and since sensors having different operating points are mixed, a sensor having a different standard than the design is constructed.

Embodiments may provide a fire detection technology that integrally provides a plurality of heat detection modes.

A fire detection device according to an embodiment includes a mode input device including a temperature detection element for detecting a temperature for determining whether a fire has occurred, and at least one switch for selecting one mode from among a plurality of heat detection modes; and a controller for determining whether the fire has occurred based on the temperature and the one mode.

The controller may sense the temperature based on a voltage applied to the temperature detection element.

The plurality of thermal sensing modes may include a differential thermal sensing mode, a constant temperature thermal sensing mode, and a compensation thermal sensing mode.

The constant temperature thermal sensing mode may have a plurality of operating points corresponding to a plurality of temperatures.

The mode input device may select one operating point from among the plurality of operating points.

It may further include a first alarm device for displaying whether the fire has occurred, and a second alarm device disposed to face the first alarm device and for displaying whether the fire has occurred.

A fire detection method according to an embodiment includes detecting a temperature to determine whether a fire has occurred, selecting one of a plurality of heat detection modes, and based on the temperature and the one mode, the and determining whether a fire has occurred.

The sensing of the temperature may include sensing the temperature based on a voltage applied to a temperature detecting element sensing the temperature.

The plurality of thermal sensing modes may include a differential thermal sensing mode, a constant temperature thermal sensing mode, and a compensation thermal sensing mode.

The constant temperature thermal sensing mode may have a plurality of operating points corresponding to a plurality of temperatures.

The selecting of the one mode may include selecting one operating point from among the plurality of operating points.

The fire detection method may further include displaying whether the fire has occurred in a first direction and displaying whether the fire has occurred in a second direction opposite to the first direction.

In the embodiments, heat detectors existing in various standards are integrated and implemented into one, so that it is easy to design a building in which a fire detection device is installed, and a manager can conveniently maintain and reduce the production cost of the fire detection device.

1 shows a schematic block diagram of a fire detection device according to an embodiment.
Fig. 2 shows a schematic block diagram of the alarm element shown in Fig. 1;
FIG. 3 shows an example of a circuit diagram of the fire detection device shown in FIG. 1 .
FIG. 4 shows an operation sequence of the fire detection device shown in FIG. 1 .

Specific structural or functional descriptions of the embodiments according to the concept of the present invention disclosed herein are only exemplified for the purpose of explaining the embodiments according to the concept of the present invention, and the embodiment according to the concept of the present invention These may be embodied in various forms and are not limited to the embodiments described herein.

Since the embodiments according to the concept of the present invention may have various changes and may have various forms, the embodiments will be illustrated in the drawings and described in detail herein. However, this is not intended to limit the embodiments according to the concept of the present invention to specific disclosed forms, and includes changes, equivalents, or substitutes included in the spirit and scope of the present invention.

Terms such as first or second may be used to describe various elements, but the elements should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from other components, for example, without departing from the scope of rights according to the concept of the present invention, a first component may be named a second component, Similarly, the second component may also be referred to as the first component.

When an element is referred to as being “connected” or “connected” to another element, it is understood that it may be directly connected or connected to the other element, but other elements may exist in between. it should be On the other hand, when it is said that a certain element is "directly connected" or "directly connected" to another element, it should be understood that the other element does not exist in the middle. Expressions describing the relationship between elements, for example, “between” and “between” or “directly adjacent to”, etc. should be interpreted similarly.

The terminology used herein is used only to describe specific embodiments, and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise. In the present specification, terms such as "comprise" or "have" are intended to designate that the described feature, number, step, operation, component, part, or combination thereof exists, and includes one or more other features or numbers, It should be understood that the possibility of the presence or addition of steps, operations, components, parts or combinations thereof is not precluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary should be interpreted as having a meaning consistent with the meaning in the context of the related art, and should not be interpreted in an ideal or excessively formal meaning unless explicitly defined in the present specification. does not

A module in the present specification may mean hardware capable of performing functions and operations according to each name described in this specification, or may mean computer program code capable of performing specific functions and operations, , or an electronic recording medium on which a computer program code capable of performing specific functions and operations is loaded, for example, may refer to a processor or a microprocessor.

In other words, a module may mean a functional and/or structural combination of hardware for carrying out the technical idea of the present invention and/or software for driving the hardware.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, the scope of the patent application is not limited or limited by these embodiments. Like reference numerals in each figure indicate like elements.

1 is a schematic block diagram of a fire detection device according to an embodiment, and FIG. 2 is a schematic block diagram of the alarm device shown in FIG. 1 .

1 and 2 , the fire detection device 10 may detect a fire. The fire detection device 10 may detect a fire by detecting smoke and/or heat generated due to a fire.

The fire detection device 10 may operate by a heat detection method or a smoke detection method. The thermal sensing method can be divided into a differential type and a constant temperature type according to the operating mechanism.

The differential type operates only when the temperature rises rapidly, and the constant temperature type operates when a constant temperature is reached.

The fire detection device 10 may detect a fire by operating in one detection mode among a plurality of heat detection modes. The fire detection device 10 may operate as a programmable heat detector that changes a heat detection mode according to a user's intention.

The fire detection device 10 includes a temperature detection element 100 , a controller 200 , and a mode input device 300 . The fire detection device 10 may further include an alarm device 400 .

The temperature detection element 100 may detect a temperature for determining whether a fire has occurred. The controller 200 may sense a temperature based on a voltage applied to the temperature detection element 100 .

The temperature detection element 100 may output the sensed temperature to the controller 200 . For example, the temperature detection element 100 may include a thermistor.

A thermistor is a type of resistor, and may refer to an electrical device using a property of changing the resistance of a material according to temperature. The thermistor is also referred to as a thermal variable resistor, and may operate as a sensor that prevents the current of a circuit from rising above a certain level or detects the temperature of the circuit.

The mode input device 300 may include at least one switch for selecting one mode among a plurality of heat sensing modes. The mode input device 300 may select a heat sensing mode by opening or closing the switch.

The mode input device 300 may select one of a plurality of heat sensing modes in response to a control signal from the controller 200 . There may be more than one mode input device 300 . The plurality of thermal sensing modes may include a differential thermal sensing mode, a constant temperature thermal sensing mode, and a compensation thermal sensing mode.

An operation in which the mode input device 300 selects one sensing mode from among a plurality of heat sensing modes will be described in detail with reference to FIG. 3 .

The constant temperature thermal sensing mode may have a plurality of operating points corresponding to a plurality of temperatures. The mode input device 300 may select one operating point from among a plurality of operating points in the constant temperature type heat sensing mode. The controller 200 may generate a control signal to select one operating point from among a plurality of operating points.

Multiple operating points of constant temperature thermal sensing mode are 12 operation of 60℃, 65℃, 70℃, 75℃, 80℃, 90℃, 100℃, 110℃, 120℃, 130℃, 140℃ and 150℃ points may be included. Depending on the embodiment, there may be less than 12 or more than 12 operating points.

The differential thermal sensing method may operate as a differential spot type sensing method or a differential distributed sensing method. The constant temperature heat sensing mode may operate in a constant temperature spot type sensing method or a constant temperature sensing linear sensing method.

The differential spot-type sensing method operates when the ambient temperature exceeds a certain rate of increase, and may refer to a sensing method operated by a thermal effect in a local area. The differential spot-type sensing method expands the air in the air chamber as the temperature rises and displaces the diaphragm (for example, a thin metal plate). .

The differential distributed sensing method operates when the ambient temperature exceeds a certain rate of increase, and may refer to a sensing method operated by accumulation of thermal effects within a wide range.

The constant temperature spot type sensing method may refer to a sensing method that operates when the ambient temperature of a location becomes a constant temperature or more. The constant temperature detection linear detection method operates when the ambient temperature of a local area is above a certain temperature, and may refer to a detection method in which the exterior is made of a wire.

The compensated spot-type detection method combines a differential spot-type detection method and a constant temperature-type spot-type detection method, and may refer to a detection method that generates an operation signal when one of the two functions is activated.

The controller 200 may determine whether a fire has occurred based on the sensed temperature and one selected heat detection mode. The controller 200 may generate a control signal for controlling the at least one mode input device 300 , the one alarm means 400 , and the SRC unit 500 based on the temperature sensed by the temperature detection element 100 . there is. In this case, the controller 200 controls the mode input device 300 using the control signal, so that the user can select one of the plurality of heat sensing modes.

The controller 200 may include a processor for processing data for fire detection. In addition, the controller 200 may further include a memory for storing the processed data.

The processor may process data stored in the memory. A processor may execute computer readable code (eg, software) stored in memory and instructions issued by the processor.

A “processor” may be a data processing device implemented in hardware having circuitry having a physical structure for performing desired operations. For example, desired operations may include code or instructions included in a program.

For example, a data processing device implemented as hardware includes a microprocessor, a central processing unit, a processor core, a multi-core processor, and a multiprocessor. , an Application-Specific Integrated Circuit (ASIC), and a Field Programmable Gate Array (FPGA).

The memory may store instructions (or programs) executable by the processor. For example, the instructions may include instructions for executing an operation of a processor and/or an operation of each component of the processor.

The memory may be implemented as a volatile memory device or a nonvolatile memory device.

The volatile memory device may be implemented as dynamic random access memory (DRAM), static random access memory (SRAM), thyristor RAM (T-RAM), zero capacitor RAM (Z-RAM), or twin transistor RAM (TTRAM).

Nonvolatile memory devices include EEPROM (Electrically Erasable Programmable Read-Only Memory), Flash memory, MRAM (Magnetic RAM), Spin-Transfer Torque (STT)-MRAM (Spin-Transfer Torque (STT)-MRAM), Conductive Bridging RAM (CBRAM) , FeRAM(Ferroelectric RAM), PRAM(Phase change RAM), Resistive RAM(RRAM), Nanotube RRAM(Nanotube RRAM), Polymer RAM(Polymer RAM(PoRAM)), Nano Floating Gate Memory (NFGM)), a holographic memory, a molecular electronic memory device, or an Insulator Resistance Change Memory.

The alarm device 400 may include a first alarm device 410 and a second alarm device 430 . The first alarm element 410 may display whether a fire has occurred in the first direction. The second alarm device 430 may be disposed to face the first alarm device 410 to display whether a fire has occurred in the second direction.

For example, the first alarm element 410 and the second alarm element 430 may be disposed at an angle of 180 degrees to each other in the fire detection device 10 . Also, at least one of the first alarm device 410 and the second alarm device 430 may be implemented as a lamp.

FIG. 3 shows an example of a circuit diagram of the fire detection device shown in FIG. 1 .

Referring to FIG. 3 , the temperature detection device 100 may detect a temperature. The temperature detection element 100 may detect a temperature around the fire detection device 10 .

The temperature detecting element 100 may have a different resistance value according to the temperature. The controller 200 may sense the temperature by sensing an electrical signal between the resistor R11 and the temperature detection element 100 . The electrical signal may include a voltage signal and/or a current signal.

The controller 200 may sense the temperature using an analog to digital converter (ADC). For example, the ADC of the controller 200 may detect a temperature based on a voltage value between the temperature detection element 100 and the resistor R11. The controller 200 may detect a fire based on the detected temperature.

The mode input device 300 may include a plurality of switches. In the example of FIG. 3 , the mode input device 300 includes a first switch 310 , a second switch 320 , a third switch 330 , a fourth switch 340 , a fifth switch 350 , and a sixth switch. (360).

As the mode input device 300 , various devices capable of switching on/off of electrical signals may be used. The mode input device 300 may include a switching device using a semiconductor such as a transistor or a mechanical switching device. For example, the mode input device 300 may include a dip switch, a jumper socket inserted into a pin header, and a switch implemented by soldering on a printed circuit board (PCB).

3 shows that the mode input device 300 includes six switches 310 to 360, the number of switches may be less than six or more than six according to an embodiment.

A resistance R1 between the first switch 310, the second switch 320, the third switch 330, the fourth switch 340, the fifth switch 350, and the sixth switch 360 and VCC, respectively , a resistor R2, a resistor R3, a resistor R4, a resistor R5, and a resistor R6 may be connected.

The switches 310 to 360 may open and close in response to a control signal of the controller 200 to change a signal input to the controller 200 to change the heat sensing mode.

Two switches among the switches 300 may be used to select a heat sensing mode, and the remaining four switches may be used to select an operating point of the constant temperature mode. For example, the first switch 310 and the second switch 320 may be used to select one of a plurality of thermal sensing modes.

The user can select one of the differential thermal sensing mode, the constant temperature thermal sensing mode and the compensating thermal sensing mode by closing the first switch 310 and the second switch 320 by generating a control signal for opening or closing. there is.

The third switch 330 , the fourth switch 340 , the fifth switch 350 , and the sixth switch 360 may be used to select an operating point in the constant temperature thermal sensing mode. The user of the controller 200 may select 16 operating points by opening and closing the third switch 330 , the fourth switch 340 , the fifth switch 350 , and the sixth switch 360 .

As discussed above, operating points may include at least 60°C, 65°C, 70°C, 75°C, 80°C, 90°C, 100°C, 110°C, 120°C, 130°C, 140°C and 150°C.

The number of mode input devices 300 may be adjusted according to the operation mode and the number of operation points.

The controller 200 may determine whether a fire has occurred based on the detected temperature and the selected heat detection mode. The controller 200 may determine whether a fire has occurred by determining whether the temperature detected by the temperature detection element 100 and/or the rate of increase of the temperature is equal to or greater than a threshold value. The controller 200 may display whether a fire has occurred by using the alarm device 400 when the detected temperature and/or the rate of increase of the temperature is equal to or greater than a threshold value.

In the case of the constant temperature type heat sensing mode, the threshold value may be different according to each operating point. The controller 200 may determine whether a fire has occurred by comparing the detected temperature with a threshold value based on the selected heat detection mode and operating point.

When a fire is detected, the controller 200 may generate an alarm (eg, a fire alarm) by using the alarm device 400 . In the example of FIG. 4 , one alarm element 400 is indicated, but there may be a plurality of alarm elements 400 .

For example, the alarm element 400 may be a lamp. The lamp may be implemented as an LED. The controller 200 may generate a fire alarm by periodically flickering the lamp.

The alarm element 400 may include a first alarm element 410 indicating whether a fire has occurred in a first direction and a second alarm element 430 indicating whether a fire has occurred in a second direction opposite to the first direction. can Blind spots can be eliminated by indicating whether a fire has occurred in two directions forming 180 degrees using two alarm elements.

The controller 200 may operate the SCR unit 500 when detecting the occurrence of a fire. When the controller 200 detects the occurrence of a fire, it triggers the SCR to drop the electric potential of the detector line 600 and/or the detector line 700 to transmit a fire report to the receiver of the automatic fire detection facility.

The SCR may be replaced by other switch means including a transistor if desired. For example, when applied to an analog addressable sensor, the SCR unit 500 may be replaced with a communication means.

FIG. 4 shows an operation sequence of the fire detection device shown in FIG. 1 .

Referring to FIG. 4 , the temperature detection device 100 may sense a temperature to determine whether a fire has occurred ( 1410 ). The controller 200 may sense a temperature based on a voltage applied to the temperature detection element.

The at least one mode input device 300 may select one of the plurality of heat sensing modes in response to the control signal ( 1430 ). The plurality of thermal sensing modes may include a differential thermal sensing mode, a constant temperature thermal sensing mode, and a compensation thermal sensing mode.

The constant temperature thermal sensing mode may have a plurality of operating points corresponding to a plurality of temperatures. The user of the controller 200 may generate an input signal with a control signal to select one operating point from among a plurality of operating points.

The first alarm element 410 may display whether a fire has occurred in the first direction. The second alarm element 430 may display whether a fire has occurred in a second direction opposite to the first direction.

The device described above may be implemented as a hardware component, a software component, and/or a combination of the hardware component and the software component. For example, devices and components described in the embodiments may include, for example, a processor, a controller, an arithmetic logic unit (ALU), a digital signal processor, a microcomputer, a field programmable gate array (FPGA). , a programmable logic unit (PLU), microprocessor, or any other device capable of executing and responding to instructions, may be implemented using one or more general purpose or special purpose computers. The processing device may execute an operating system (OS) and one or more software applications running on the operating system. A processing device may also access, store, manipulate, process, and generate data in response to execution of the software. For convenience of understanding, although one processing device is sometimes described as being used, one of ordinary skill in the art will recognize that the processing device includes a plurality of processing elements and/or a plurality of types of processing elements. It can be seen that can include For example, the processing device may include a plurality of processors or one processor and one controller. Other processing configurations are also possible, such as parallel processors.

Software may comprise a computer program, code, instructions, or a combination of one or more thereof, which configures a processing device to operate as desired or is independently or collectively processed You can command the device. The software and/or data may be any kind of machine, component, physical device, virtual equipment, computer storage medium or apparatus, to be interpreted by or to provide instructions or data to the processing device. , or may be permanently or temporarily embody in a transmitted signal wave. The software may be distributed over networked computer systems and stored or executed in a distributed manner. Software and data may be stored in one or more computer-readable recording media.

The method according to the embodiment may be implemented in the form of program instructions that can be executed through various computer means and recorded in a computer-readable medium. The computer-readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be specially designed and configured for the embodiment, or may be known and available to those skilled in the art of computer software. Examples of the computer-readable recording medium include magnetic media such as hard disks, floppy disks and magnetic tapes, optical media such as CD-ROMs and DVDs, and magnetic such as floppy disks. - includes magneto-optical media, and hardware devices specially configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine language codes such as those generated by a compiler, but also high-level language codes that can be executed by a computer using an interpreter or the like. The hardware devices described above may be configured to operate as one or more software modules to perform the operations of the embodiments, and vice versa.

As described above, although the embodiments have been described with reference to the limited embodiments and drawings, various modifications and variations are possible from the above description by those skilled in the art. For example, the described techniques are performed in an order different from the described method, and/or the described components of the system, structure, apparatus, circuit, etc. are combined or combined in a different form than the described method, or other components Or substituted or substituted by equivalents may achieve an appropriate result.

Therefore, other implementations, other embodiments, and equivalents to the claims are also within the scope of the following claims.

Claims (12)

a temperature detection element for detecting a temperature for determining whether a fire has occurred;
a mode input device including at least one switch for selecting one mode from among a plurality of heat sensing modes; and
A controller that determines whether the fire has occurred based on the temperature and the one mode
A fire detection device comprising a.
According to claim 1,
The controller is
Sensing the temperature based on the voltage applied to the temperature detection element
fire detection device.
According to claim 1,
The plurality of heat sensing modes,
Differential thermal sensing mode, constant temperature thermal sensing mode and compensated thermal sensing mode
A fire detection device comprising a.
4. The method of claim 3,
The constant temperature heat detection mode is,
having a plurality of operating points corresponding to a plurality of temperatures;
fire detection device.
5. The method of claim 4,
The mode input device,
selecting one operating point from among the plurality of operating points;
fire detection device.
According to claim 1,
a first alarm device for displaying whether the fire has occurred; and
A second alarm device disposed to face the first alarm device and for indicating whether the fire has occurred
A fire detection device further comprising a.
detecting a temperature to determine whether a fire has occurred;
selecting one of a plurality of thermal sensing modes; and
Determining whether the fire has occurred based on the temperature and the one mode
A fire detection method comprising:
8. The method of claim 7,
The step of sensing the temperature is
Sensing the temperature based on a voltage applied to a temperature detecting element for sensing the temperature
A fire detection method comprising:
8. The method of claim 7,
The plurality of heat sensing modes,
Differential thermal sensing mode, constant temperature thermal sensing mode and compensated thermal sensing mode
A fire detection method comprising:
10. The method of claim 9,
The constant temperature heat detection mode is,
having a plurality of operating points corresponding to a plurality of temperatures;
How to detect fire.
11. The method of claim 10,
The step of selecting one mode is,
selecting one operating point from among the plurality of operating points;
A fire detection method comprising:
8. The method of claim 7,
displaying whether the fire has occurred in a first direction; and
displaying whether the fire has occurred in a second direction opposite to the first direction
A fire detection method further comprising a.

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