KR102123737B1 - Fire alarm device - Google Patents

Abstract

The fire alarm is driven by internal power supplied from the internal battery and external power applied from the outside. The fire alarm uses a humidity sensor to distinguish which smoke and water vapor is detected by the smoke sensor. Only when the external power is applied to the fire alarm, the fire alarm receives a detection signal from other sensors or transmits a control signal to other devices. The fire alarm generates a warning sound when it is determined that a fire occurrence probability is high using big data.

Description

Fire alarm {FIRE ALARM DEVICE}

The present invention relates to a fire alarm, and specifically to a fire alarm that can use both the internal battery and external power. In addition, it relates to a fire alarm that can detect whether a fire has occurred in advance using big data.

Generally, a fire alarm system is installed in a building to reduce human injury in a fire. Such a fire alarm system automatically detects a fire through a fire alarm that detects heat, smoke, or flames generated by a fire, or when a predetermined alarm is operated by a fire detector, such as alarm bells, sirens, or indicator lights. It is a system that generates an alarm to a person or resident in the building through an alarm device.

Conventional unilateral fire alarms simply detect heat or smoke to determine whether it is a fire. In this case, there is a problem in that smoke and smoke caused by fire cannot be distinguished.

In addition, in the case of a fire alarm, it is usually driven by a built-in battery, and for this reason, there is a problem in that other functions cannot be actively added to the fire alarm in order to reduce power consumption.

In addition, in the case of a fire alarm, there is a problem in that it only informs whether or not a fire has occurred after a fire only in case of a fire.

The present invention aims to solve the above problems and to provide a fire alarm capable of distinguishing water vapor from smoke.

In addition, it is another object to provide a fire alarm that can not only detect smoke, but also photograph thermal images of objects and communicate with other external devices by wire/wireless communication.

In addition, another object of the present invention is to provide a fire alarm capable of informing a user in advance when it is determined that a fire occurrence probability is high using big data.

The fire detector according to an embodiment of the present invention includes a smoke sensor, a heat sensor, and a sensor module including a humidity sensor, a thermal imaging camera module, a built-in battery, and a power module that includes an external power adapter that can receive power from the outside. , External extension terminals that can receive external signals through wires from other sensors, external output terminals that can provide relay signals to control other external devices, signals received from the sensor module, and the external Corresponding to the external signal received from the other sensors of the communication module for wirelessly transmitting a signal to an external server, and the sensor module, the thermal imaging camera module, the power module, the external expansion terminal, the external output It may include a terminal, and a control circuit for controlling the communication module.

In an embodiment of the present invention, only when the amount of change in humidity measured by the humidity sensor is greater than or equal to a predetermined value, the control circuit can determine the measured value of the smoke sensor as valid data.

In an embodiment of the present invention, when the relative humidity measured by the humidity sensor is 95% or more and 100% or less, the control circuit may always determine the measured value of the smoke sensor as valid data.

In one embodiment of the present invention, the external extension terminal and the external output terminal may be activated only when the constant power adapter receives power from the outside.

In one embodiment of the present invention, the thermal imaging camera module can be activated only when the constant power adapter receives the power from the outside.

In an embodiment of the present invention, the external sensors may include at least one of a flame detection sensor and a body detection sensor.

In one embodiment of the present invention, the thermal imaging camera module may be provided in plural. The number of the plurality of thermal imager camera modules is four, and the direction in which one of the four thermal imager camera modules is photographed is 90 or 180 degrees different from the directions in which other thermal imager camera modules are photographed. Can fly

In one embodiment of the present invention, the sensor module may further include a thermal sensor.

In one embodiment of the present invention, the communication module may receive big data from an external device. The big data includes data corresponding to the probability of fire by date, data corresponding to the probability of fire by time, data corresponding to the probability of fire by location, data corresponding to the probability of fire by temperature, and probability of fire by humidity It may include corresponding data, data corresponding to the probability of fire occurrence by weather, data corresponding to the probability of fire occurrence by industry, or data corresponding to the probability of fire occurrence by user.

In one embodiment of the present invention, the control circuit may determine whether to determine the measured value of the smoke sensor as valid data using the big data.

According to an embodiment of the present invention, it is possible to provide a fire alarm having a low probability of malfunction due to water vapor even though an actual fire has not occurred by distinguishing water vapor from smoke.

In addition, according to an embodiment of the present invention, since both the built-in battery and the external power can be used, it is possible to provide a fire alarm for receiving a signal from an external device or controlling an external device when external power is applied.

In addition, according to an embodiment of the present invention, when it is determined that a fire occurrence probability is high using big data, a fire alarm that warns the user in advance may be provided.

1 exemplarily shows a perspective view of a fire alarm according to an embodiment of the present invention.
FIG. 2 is a block diagram showing the fire alarm illustrated in FIG. 1 as an example.
3 is an exemplary view illustrating a fire alarm system including the fire alarm shown in FIG. 1.
Figure 4 illustrates a fire alarm according to an embodiment of the present invention by way of example.
5 is a flowchart illustrating a process of operating a fire alarm according to an embodiment of the present invention.
6 shows that a fire alarm according to an embodiment of the present invention uses big data.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the drawings, the proportions and dimensions of the components are exaggerated for effective description of the technical content. “And/or” includes all combinations of one or more of which the associated configurations may be defined.

The term "comprises" is intended to indicate the presence of features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, one or more other features or numbers, steps, actions, or configurations. It should be understood that the presence or addition possibilities of elements, parts or combinations thereof are not excluded in advance.

1 exemplarily shows a perspective view of a fire alarm 10 according to an embodiment of the present invention. FIG. 2 is a block diagram showing the fire alarm 10 illustrated in FIG. 1 as an example. 3 is an exemplary view showing a fire alarm system including the fire alarm 10 shown in FIG. 1.

In one embodiment of the present invention, a plurality of openings OP may be defined on the outer surface of the fire alarm 10. Smoke from the fire may enter the fire alarm 10 through at least one of the openings OP.

2, the fire alarm 10 includes a sensor module 100, a thermal imaging camera module 200, a power supply module 300, an expansion terminal module 400, a communication module 500, and a memory unit 600. , A speaker 700, and a control circuit 800.

The sensor module 100 may include a smoke sensor 110, a heat sensor 120, and a humidity sensor 130.

The smoke sensor 110 is a sensor for detecting whether smoke has been generated, and it is possible to determine whether smoke has been generated by detecting a change in transmittance of light generated due to smoke. For example, the smoke sensor 110 may include a light emitting element and a light receiving element, and may detect a change in light transmittance by detecting light emitted from the light emitting element through the light receiving element. However, the method in which the smoke sensor 110 detects smoke is not limited thereto.

The heat sensor 120 senses whether the ambient temperature rises due to a fire by detecting external heat.

The humidity sensor 130 detects changes in the current humidity (eg, relative humidity) and humidity around.

As described above, since the smoke sensor 110 detects the light transmittance and determines whether smoke has occurred, the smoke transmittance change caused by a large amount of water vapor and the light transmittance change caused by smoke have a problem. Occurs. Therefore, in the case of water vapor, since it contains moisture, the humidity sensor 130 can be used to determine whether the smoke sensor 110 reacts because of water vapor or whether the smoke sensor 110 reacts because of actual smoke. The method of reading water vapor and smoke using the humidity sensor 130 will be described in detail in FIG. 5.

The thermal imaging camera module 200 is a device that photographs using heat generated from an object. Therefore, the thermal imaging camera module 200 has an advantage of being able to photograph an object even in a dark situation without light or an obstacle such as smoke.

The fire alarm 10 includes the thermal imaging camera module 200 to determine whether there is a living body (eg, a person, a dog, a cat, etc.) at a location where the fire has occurred, and externally (eg, It can be sent to the manager, fire department, management center, etc. at the location where the fire occurred. At this time, the communication module 500 may be used for information transmission, and the subject receiving the information may be an organization or a person capable of accessing the server SS shown in FIG. 3.

The power module 300 may include an internal battery 310 and an external power adapter 320.

The built-in battery 310 may be, for example, a battery or a rechargeable battery. The voltage value of the power provided by the built-in battery 310 may be about 3V.

The external power adapter 320 may be a module for receiving always-on power applied from the outside. For example, the external power adapter 320 may change the 220V AC voltage that is always applied from the outside to a DC voltage of 5V to 16V.

In an embodiment of the present invention, the built-in battery 310 and the external power adapter 320 may simultaneously supply power so that the fire alarm 10 is driven. In another embodiment of the present invention, in order for the fire alarm 10 to be driven, only one of the built-in battery 310 and the external power adapter 320 may supply power.

The extension terminal module 400 may include an external extension terminal 410 and an external output terminal 420. Through the expansion terminal module 400, other devices and the fire alarm 10 can exchange data with wired or wireless devices.

The external expansion terminal 410 is a module for receiving information from other sensors 20 and 30 outside. Referring to FIG. 3, other sensors 20 and 30 providing information to the external extension terminal 410 may include a flame detection sensor 20 and/or a body detection sensor 30.

In one embodiment of the present invention, when there is no separate wireless communication module to the other sensors (20, 30) of the outside, the fire alarm 10 through the external expansion terminal 410, the other sensors (20) outside , 30), and transmit the received information to the server SS through the communication module 500. As such, the fire alarm 10 may function as a repeater for transmitting information sensed by other sensors 20 and 30 to other external devices.

The external output terminal 420 is a module for outputting a relay signal for controlling other external devices, and specifically, a relay signal may be transmitted to other devices in a wired manner. Accordingly, devices without a separate wireless communication module may be controlled by receiving a relay signal from a user through the fire alarm 10.

The communication module 500 may be a module for wirelessly communicating with an external server SS. In one embodiment of the present invention, the communication module 500 may be a module using a frequency of about 900 MHz, Wi-Fi, or Bluetooth. However, the present invention is not limited thereto, and a module that allows the fire alarm 10 to communicate with the server SS wirelessly is sufficient.

The memory unit 600 may store information for the fire detector 10 to operate. The memory unit 600 may be a volatile memory or a nonvolatile memory.

The speaker 700 may output a warning sound when the fire detector 10 detects whether a fire has occurred through the sensor module 100. In addition, in one embodiment of the present invention, when the life of the built-in battery 310 expires, the speaker 700 may output a warning sound and output a notification asking the user to replace the battery.

The control circuit 800 includes a sensor module 100, a thermal imaging camera module 200, a power supply module 300, an expansion terminal module 400, a communication module 500, a memory unit 600, and a speaker 700 It is a circuit for controlling the driving. For example, the control circuit 800 may be a circuit including a central processing unit (CPU).

In one embodiment of the present invention, at least one of the thermal imaging camera module 200 and the expansion terminal module 400 is driven only when external power is applied through the external power adapter 320 of the power module 300 Can be. Since the thermal imaging camera module 200 or the expansion terminal module 400 consumes a lot of power to be driven, when the fire alarm 10 is driven only by the built-in battery 310, the thermal imaging camera module 200 or It is to control the expansion terminal module 400 from being driven.

4 exemplarily shows a fire alarm 10-1 according to an embodiment of the present invention.

The fire alarm 10-1 may include four thermal imaging camera modules 200. The thermal imaging camera modules 200 may photograph different directions. The directions taken by the thermal imaging camera modules 200 may be 90 degrees or 180 degrees different from each other.

As described above, a plurality of thermal imaging camera modules 200 are mounted on the fire alarm 10-1, so that it is possible to more accurately determine whether or not there is a living organism in a place where a fire has occurred.

Figure 5 is a flow chart (S10) showing a fire alarm driving method (S10) according to an embodiment of the present invention. According to the fire alarm driving method (S10) shown in FIG. 5, the fire alarms 10 and 10-1 can distinguish water vapor and smoke.

In the smoke sensor driving step (S100 ), the smoke sensor 110 of the sensor module 100 detects a change in light and transmits a signal corresponding thereto to the control circuit 800.

In the relative humidity determination step (S200), the control circuit 800 receives the relative humidity value of the previously sensed surroundings from the humidity sensor 130 of the sensor module 100 in response to the signal received from the smoke sensor 110. do.

If the existing relative humidity value received from the humidity sensor 130 is 95% or more, it is currently very humid or rainy, so the smoke detected by the smoke sensor 110 through the amount of change in humidity is smoke or smoke. It is difficult to accurately determine. Therefore, in this case, it is always reported that smoke has been detected, and the fire alarm 10 is driven to generate a warning sound through the speaker 700 or a fire in the external server SS through the communication module 500. Information can be transmitted (S410).

If the existing relative humidity value received from the humidity sensor 130 is less than 95%, it is not currently humid outside, so it is accurately determined whether the smoke sensor 110 detects water vapor or smoke through the change in humidity. can do.

The reference value of the relative humidity value described above is not limited to 95%. If necessary, the humidity value as a reference for determining whether it is water vapor or smoke may be changed.

By calculating the amount of change in humidity measured by the humidity sensor 130, it is determined whether the calculated amount of change in humidity is greater than a predetermined change value (for example, the change amount is 10%) (S300), and the humidity increases to increase the humidity. If the amount of change is large, it may be determined that what is currently detected by the smoke sensor 110 is water vapor, not smoke. Therefore, in this case, the fire alarm may not generate a warning signal.

The reference value of the humidity change amount described above is not limited to 10%. If necessary, the humidity change value as a reference for determining whether it is water vapor or smoke may be changed.

Alternatively, by calculating the amount of change in humidity measured by the humidity sensor 130, if the calculated amount of change in humidity is less than a predetermined change value (for example, the amount of change is 10%), the change in humidity is delayed As it can be seen, it is possible to determine that the smoke currently detected by the smoke sensor 110 is smoke. Therefore, in this case, the fire alarm may generate a warning signal (S420).

However, even if the calculated change amount of humidity is greater than a predetermined change value, if the humidity decreases, it can be determined that the smoke detected by the year-end generator 110 is smoke. This is because when a fire occurs, the surrounding humidity may be lowered by the fire.

6 shows that the fire alarm 10 according to an embodiment of the present invention uses big data (BD).

In one embodiment of the present invention, the fire alarm 10 may communicate with the device and the server SS storing the big data BD.

In one embodiment of the present invention, the big data BD may be stored in the memory unit of the server SS. In another embodiment of the present invention, the big data BD may be stored in a memory unit of a device other than the server SS.

Big data may include surrounding environment data to determine whether a fire has occurred.

For example, the surrounding environment data is data corresponding to the probability of fire occurrence by date (for example, fire probability by day or probability of fire occurrence by month), and data corresponding to the probability of fire occurrence by time (eg, dawn/morning) / Fire/probability classified into afternoon/evening/midnight), data corresponding to the probability of fire occurrence by location (e.g., fire probability divided into city/mountain/beach/farm, etc.), fire probability by temperature Corresponding data (e.g. fire probability divided into spring/summer/autumn/winter), data corresponding to fire occurrence probability by humidity (e.g. fire probability by specific humidity level), fire by weather Data corresponding to probability (e.g., fire occurrence probability classified as sunny/cloudy/rainy), data corresponding to fire occurrence probability by industry (e.g. fire classified as home/restaurant/factory/office) Occurrence probability), or data corresponding to a fire occurrence probability for each user (eg, fire occurrence probability classified by age/occupation/gender, etc.).

The big data BD may be periodically updated.

The fire alarm 10 receives the big data (BD) using the communication module 500 and the signal measured by the sensor module 100 using the received big data (BD) using the control circuit 800 Can decide whether is valid. That is, the fire alarm 10 can use big data (BD) as data for determining whether a fire has occurred.

For example, according to the received big data (BD), if the current environment is an environment with a high probability of fire (eg, winter, late-night hours, industries that use a lot of fire, etc.), the fire alarm 10 fires It can make the warning sound more sensitive.

According to the received big data (BD), if the current surrounding environment is an environment with a low probability of fire (eg, high humidity, daytime hours, locations with many people), the fire alarm 10 warns that a fire has occurred Can be less sensitive.

In one embodiment of the present invention, the control circuit 800 of the fire alarm 10 calculates the probability of fire occurrence using the big data BD received through the communication module 500, and the fire occurrence probability is predetermined. If the value of (for example, 80%) or more, the sensor module 100 may generate a warning sound through the speaker 700 even if it does not detect a fire.

That is, the fire alarm 10 according to an embodiment of the present invention uses big data (BD) to determine the probability of a fire and warn in advance before a fire occurs if it is determined that the probability of a fire is high It can be used as a pre-cognitive fire alarm.

Although described with reference to examples, those skilled in the art can understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention as set forth in the claims below. There will be. In addition, the embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, and all technical spirit within the scope of the following claims and equivalents thereof should be interpreted as being included in the scope of the present invention. .

10, 10-1: Fire alarm 100: Sensor module
200: Thermal imager module 300: Power module
400: expansion terminal module 500: communication module
600: memory unit 700: speaker
800: Control circuit BD: Big data

Claims (15)

A sensor module including a smoke sensor, a heat sensor, and a humidity sensor and detecting a fire;
Thermal imaging camera module;
A power module including a built-in battery and an always-on power adapter capable of receiving power from the outside;
An external extension terminal capable of receiving an external signal by wire from other sensors;
An external output terminal capable of providing a relay signal for controlling other external devices;
A communication module that wirelessly transmits a signal to an external server in response to the signal received from the sensor module and the external signal received from other external sensors;
A control circuit for controlling the sensor module, the thermal imaging camera module, the power module, the external extension terminal, the external output terminal, and the communication module; And
Including speakers,
The communication module receives the big data stored in the external device,
The big data includes data corresponding to the probability of fire by date, data corresponding to the probability of fire by time, data corresponding to the probability of fire by location, data corresponding to the probability of fire by temperature, and probability of fire by humidity It includes corresponding data, data corresponding to the probability of fire occurrence by weather, data corresponding to the probability of fire occurrence by industry, or data corresponding to the probability of fire occurrence by user,
The control circuit calculates the probability of a fire using the big data,
When the calculated probability is greater than or equal to a predetermined value, the speaker generates a fire alarm even if the sensor module does not detect the fire. According to claim 1,
Only when the amount of change in humidity measured by the humidity sensor is greater than or equal to a predetermined value, the control circuit determines the measured value of the smoke sensor as valid data. According to claim 2,
When the relative humidity measured by the humidity sensor is 95% or more and 100% or less, the control circuit always determines the measured value of the smoke sensor as valid data. According to claim 1,
The external extension terminal and the external output terminal are fire detectors that are activated only when the constant power adapter receives power from the outside. According to claim 4,
The thermal imaging camera module is a fire detector that is activated only when the constant power adapter receives the power from the outside. According to claim 1,
The other sensors of the external fire detector including at least one of a flame detection sensor and a body detection sensor. According to claim 1,
The thermal imaging camera module is provided with a plurality of fire detectors. The method of claim 7,
The number of the plurality of thermal imaging camera modules is four,
The direction in which any one of the four thermal imaging camera modules shoots is a fire detector that is 90 or 180 degrees different from the directions in which other thermal imaging camera modules shoot. According to claim 1,
The sensor module is a fire detector further comprising a heat sensor. delete According to claim 1,
The control circuit uses the big data to determine whether to determine whether the measured value of the smoke sensor is valid data. delete In the fire detection method for detecting a fire using a fire alarm including a smoke sensor and a humidity sensor,
Generating a detection signal using the smoke sensor;
Determining a relative humidity before the detection signal is generated using the humidity sensor;
Generating a fire occurrence warning signal when the determined relative humidity is greater than a predetermined humidity value, and calculating a humidity change amount using the humidity sensor when the detected relative humidity is less than the predetermined humidity value;
Generating a fire occurrence warning signal when the calculated humidity change amount is greater than or equal to a predetermined change amount value, and generating a fire occurrence warning signal if the calculated humidity change amount is less than the predetermined change amount value; And
Fire detection including receiving the big data stored in an external device and generating the fire occurrence warning signal even if the detection signal does not occur when the probability of fire occurrence calculated using the big data is greater than or equal to a predetermined value. Way. The method of claim 13,
The predetermined humidity value is 95% fire detection method. The method of claim 13,
The predetermined amount of change is 10% fire detection method.

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