Patent Description:
In general, a boiler burns fuels such as coal, kerosene, and diesel containing carbon components to control water and indoor temperature.

Boilers generate carbon monoxide (CO) during the process of burning fuels containing carbon components. CO is a colorless, odorless, tasteless, and non-irritating gas that is harmful to the human body.

Therefore, a boiler flue system, which is an exhaust pipe connected from the boiler to the outside, is formed in the boiler so as to discharge the CO being generated to the outside.

However, in the case where such boiler flue is damaged indoors or the connection is incorrect, there has been a risk that CO may be leaked through the connection gap and the broken gap of the exhaust pipe.

When CO is leaked, it is difficult for people to recognize the CO leakage because it is a colorless, odorless, tasteless, and non-irritating gas. When people inhale CO, it binds with hemoglobin in the red blood cells and prevents oxygen from being transported to tissues. Therefore, it is a dangerous gas that can threaten the lives of people by means of hypoxia.

In fact, a number of casualties are frequently occurring due to CO leakage caused by incorrect connection and an old boiler flue.

In order to detect and block CO leakage from such boiler, a variety of CO leakage detection devices (e.g., <CIT>[Hybrid Alarm System for Boiler]) have been developed and applied, which measures CO inside and around the boiler and generates an alarm when the CO level exceeds a certain threshold.

Conventionally, the existing CO leakage detection devices generate a CO alarm when the reference time according to the level of the CO value being measured is exceeded. Since the conventional CO leakage detection devices generate an alarm only when the reference time according to the level is exceeded, these conventional CO leakage detection devices had a problem in that even when a sudden large amount of CO leakage occurs due to the damage to the flue, the alarm is not generated unless the corresponding reference time is exceeded, thereby placing the user in danger.

Additionally, the conventional CO leakage detection devices had problems in that the alarm may not be heard even when the alarm goes off because these devices were installed in a location separated from the space where the user lives, in that the alarm may not be recognized until the user is poisoned by CO while sleeping, and in that the user may be directly poisoned by CO when the alarm function of the leakage detection devices fails.

Additionally, these conventional CO leakage detection devices had problems in that even after the user hears the alarm from a CO leakage detection device and shuts down the operation of the boiler, or even after the operation of the boiler is automatically shut down by a CO leakage detection device, CO still may remain within the boiler and the CO inside the boiler may leak into the user's living space, thus having a risk of doing harm to the user.

Additionally, the conventional CO leakage detection devices had problems in that since they generate an alarm according to the detection of CO leakage or only shut down the operation of the boiler, the user had to open the window in the living space and directly ventilate the living space so as to remove the CO that has already spread throughout the user's living space, which could endanger the unconscious user due to an exposure to CO.

<CIT>, <CIT>, <CIT>, <CIT> and <CIT> are all useful for understanding the invention.

Accordingly, an object of the present disclosure is to provide a system and a method for discharging carbon monoxide (CO) by using a CO leakage alarm device, which detects CO leakage caused by damage to a boiler flue and sounds an alarm through at least two from among the CO leakage alarm device, a boiler controller, a wall pad, etc.; automatically performs boiler ventilation and indoor air ventilation when the leakage is determined; and directly notifies CO leakage-related authorities and users about the CO leakage.

A carbon monoxide release system using a CO leakage alarm device according to the present disclosure for achieving the above objects is provided according to claim <NUM>.

The boiler is characterized in that it includes: the burner; the boiler flue; a boiler ventilator, which discharges the gas present in the burner and the boiler flue to the outside by performing a post purge; a control module, which performs a post purge by controlling the boiler ventilator in the post purge mode; and a controller, which includes an output means that is provided in each room of the indoor space and displays operation information of a boiler according to the operation state of a control module, an input means for operating a boiler by a user, and an alarm means, and thereby receives an input of notification information of CO leakage from the control module and generates an alarm through the alarm means.

The CO leakage alarm device is characterized in that it includes: a CO measurement unit, which includes a CO measurement sensor installed at a position corresponding to the boiler flue, measures and outputs the amount of CO leaking from the boiler through the CO measurement sensor; a collision detection unit, which is attached to the boiler flue, detects a collision and an impact applied to the flue, and outputs an impact strength value according thereto; an alarm-sounding unit, which generates an alarm; and an alarm control unit, which determines the presence/absence of CO leakage due to the deviation of the boiler flue by the flue impact of the boiler through the collision detection unit and the amount of CO being input to the CO measurement unit, and generates an alarm by controlling the alarm-sounding unit according to the presence/absence of CO by the deviation of the boiler flue.

The alarm control unit is characterized in that it includes: a collision monitoring unit, which monitors the presence/absence of a collision in the flue through the collision detection unit, and obtains and outputs an impact strength value due to the collision upon detection of a collision; a CO monitoring unit, which monitors the presence/absence of CO detection through the CO measurement unit, and obtains and outputs the amount of CO upon detection of CO; and a CO leakage determination unit, which determines whether or not CO leakage is due to deviation and damage to the boiler flue caused by the impact strength value and the amount of CO, and upon determining that the CO leakage is due to deviation and damage to the boiler flue, generates an alarm through the alarm-sounding unit.

The CO leakage alarm device is characterized in that it further includes: an interface unit, which includes a boiler ventilation unit that ventilates the combustion engine inside the boiler by a post purge, and a connection unit connected to the control module of the boiler that controls the boiler ventilation unit to perform a post purge mode, wherein the alarm control unit further includes a boiler leakage treatment unit, which upon determining that the CO leakage is due to deviation and damage to the boiler flue through the CO leakage determination unit, outputs a request signal for a post purge to the control module through the connection unit so that the boiler performs the post purge mode.

The CO leakage alarm device is characterized in that it further includes: a communication unit, which is connected to a wired/wireless data communication network by any one of wired and wireless means and performs data communication with a wall pad connected to a ventilation system through a wired/wireless data communication network, wherein the alarm control unit further includes a ventilation leakage treatment unit, which upon determining that the CO leakage is due to deviation and damage of the boiler flue through the CO leakage determination unit, requests to generate an alarm according to the CO leakage the wall pad through the communication unit, and outputs a ventilation request signal for requesting to ventilate the air in the indoor space, where the boiler is installed, with the outdoor air to thereby ventilate the air in the indoor space.

The CO leakage alarm device is characterized in that it further includes: a communication unit, which is connected to a wired/wireless data communication network by any one of wired and wireless means, and performs data communication through a wired/wireless data communication network by being connected to a user mobile terminal of a user registered in advance that uses the indoor space, wherein the alarm control unit further includes a leakage notification unit, which upon determining that the CO leakage is due to deviation and damage of the boiler flue through the CO leakage determination unit, transmits a CO leakage message to the user mobile terminal of the user registered in advance through the communication unit to thereby allow the user mobile terminal, which has received the CO leakage message, to generate an alarm.

A method for discharging CO using a CO leakage alarm device according to the present disclosure for achieving the above objects is provided according to claim <NUM>.

Since the present disclosure determines whether or not CO leakage is due to damage of the boiler flue, an alarm can be generated quickly upon determination of damage of the flue damage, and thus, the present disclosure provides an effect to allow the user to deal with the CO leakage more quickly before being poisoned.

Additionally, the present disclosure generates an alarm through not only an alarm device but also a wall pad or boiler controller installed in each room, and thus provides an effect that the user can be more accurately notified of CO leakage.

Additionally, in the present disclosure, upon detection of CO leakage, the operation of the boiler is stopped and then the gas inside the boiler is discharged by operating the boiler in a post purge mode. Therefore, the present disclosure provides an effect of minimizing the leakage of CO remaining inside the boiler into the user's indoor space. However, post purge may not be performed when damage of the flue is determined.

Additionally, the present disclosure provides an effect of minimizing the user's CO poisoning by operating an indoor ventilation system through the wall pad to thereby ventilate the air in the user's indoor space to the outside, upon detection of CO leakage.

Additionally, in the present disclosure, an alarm is generated by notifying a mobile terminal such as a user's smartphone upon detection of CO leakage, and thus the present disclosure provides an effect that the user can be notified of CO leakage quickly.

Additionally, in the present disclosure, upon detection of CO leakage, it is notified to the related authorities, and thus the present disclosure provides an effect that the CO-poisoned user can be quickly rescued.

Hereinafter, the configuration and operational actions of the CO leakage alarm device and the CO discharge system according to the present disclosure will be described in detail with reference to the accompanying drawings, and a method of alarming CO leakage and a method of CO discharge in the device will be described.

<FIG> is a drawing illustrating the configuration of a CO discharge system using a CO leakage alarm device according to the present disclosure.

Referring to <FIG>, the CO discharge system using the CO leakage alarm device according to the present disclosure includes a CO leakage alarm device <NUM> and a boiler <NUM>, and according to the embodiment, further includes a wall pad <NUM>, a ventilation system <NUM>, optionally a user mobile terminal <NUM>, and optionally a server of related authorities <NUM>.

The CO leakage alarm device <NUM>, the boiler <NUM>, the wall pad <NUM>, the user mobile terminal <NUM>, and the related institution server <NUM> are connected to a wired or wireless data communication unit <NUM> by any one of wired or wireless data means and thereby perform data communication.

The wired and wireless data communication unit <NUM> may be a data communication network, in which any one or more among the internet network including a Wi-Fi network and a local area network (LAN) and a mobile flue network (e.g., <NUM> Generation (<NUM>), <NUM>, <NUM>, etc.) are combined.

The CO leakage alarm device <NUM> detects the impact applied to the boiler flue <NUM> of the boiler <NUM>, measures the amount of CO generated by the boiler <NUM>, and upon detection of the impact of the boiler flue <NUM>, estimates based on the impact strength value and the measured amount of CO whether the CO leakage is due to the deviation of the boiler flue <NUM> or leakage from another part (the internal connection part of the boiler, etc.). That is, the CO leakage alarm device <NUM> estimates whether the CO leakage is due to an impact or leakage due to a natural aging and an installation error.

The CO leakage alarm device <NUM>, upon determination that the CO leakage is due to the deviation of the boiler flue <NUM>, generates an alarm according to the presence/absence of CO leakage due to the deviation and damage of the boiler flue <NUM>, and transmits the notification information of CO leakage to the boiler <NUM>, and transmits to the wall pad <NUM>, the user mobile terminal <NUM>, and the server of related authorities <NUM> according to the embodiment.

It would be desirable for the CO leakage alarm device <NUM> to be able to distinguish between general CO leakage and CO leakage due to deviation and damage of the boiler flue <NUM>, and generate an alarm louder than that of a typical CO leakage so as to notify that the CO leakage due to deviation and damage of the boiler flue <NUM> is more dangerous.

The boiler <NUM> includes the boiler body <NUM> and at least one controller <NUM> installed in each room of the indoor space in which the boiler <NUM> is installed.

The main body <NUM> includes a burner (not shown) for burning fuel, a boiler ventilation unit <NUM> that performs pre-purge and post-purge for discharging the gas generated in the burner through the boiler flue <NUM> before and after combustion, and a control module <NUM> that controls the operation of the boiler and controls the boiler ventilation unit <NUM> so as to perform one of the pre-purge and the post-purge. The control module <NUM> may be connected to the wired or wireless data communication unit <NUM> by any one of a wired means and a wireless means. The boiler ventilation unit <NUM> will include a ventilator (not shown).

The controller <NUM> is installed in each room of the indoor space where the boiler <NUM> is installed, and includes an output means for displaying operation information of the boiler according to the operation state of the control module, an input means for operating the boiler by a user, and an alarm means. The controller <NUM> receives the notification information of CO leakage from the control module <NUM> and generates an alarm through the alarm means.

The wall pad <NUM> may be connected to the wired and wireless data communication unit <NUM> by any one of a wired means and a wireless means, and perform data communication with the control module <NUM> of the boiler <NUM>, the CO leakage alarm device <NUM>, the user's mobile terminal <NUM>, and the server of related authorities <NUM>.

The wall pad <NUM> may be connected to the ventilation system (Energy Recovery Ventilation: ERV) <NUM> and may include a display means (not shown) that displays an operation means (not shown), a display means (not shown) that displays information of operation state of the ventilation system <NUM> according to the operation of the wall pad <NUM> to the user, etc..

The wall pad <NUM> includes an alarm means (not shown) capable of generating an alarm by an alarm, flickering of the display means, etc., and generates an alarm through the alarm means upon receiving notification information of CO leakage from the CO leakage alarm device <NUM>, and ventilates the air in the indoor space by performing an operation, which exchanges the air in the indoor space where the ventilation system <NUM> is configured with outdoor air, by controlling the ventilation system <NUM>.

Since the ventilation system <NUM> is a common ERV well known to those skilled in the art, it will not be described in detail.

The user mobile terminal <NUM> may be a terminal (e.g., a smartphone, a smart pad, etc. that can access the wired/wireless data communication unit <NUM>) of a manager, etc. who lives in an indoor space where the boiler <NUM> is installed or manages the indoor space.

The user mobile terminal <NUM>, according to the present disclosure, receives the notification information of CO leakage transmitted directly from the CO leakage alarm device <NUM> or the one transmitted through an application server (not shown) through an installed application, and generates an alarm. The alarm may be a sound such as an alarm and a voice, may be a vibration, may be a flickering of a display means (not shown), may be two or more among a sound, a vibration, and a flickering. The notification information of CO leakage may be transmitted in the form of a push message according to the type of the application server or a mobile flue message (e.g., a short message service (SMS), a long message service (LMS), a multimedia message service (MMS), etc.). If the notification information of CO leakage is transmitted as the push message and the mobile flue message, it is preferable to be configured to generate an alarm by the information of the sender who has sent the push message and the mobile flue message.

The server of related authorities <NUM> is a server configured in related authorities (e.g., <NUM> rescue teams, police stations, etc.). It generates an alarm upon receiving the notification information of CO leakage, and displays the notification information of CO leakage. The notification information of CO leakage may include information on a geographic location in which the boiler is installed.

<FIG> is a view illustrating a detailed configuration of a CO leakage alarm device according to the present disclosure.

Referring to <FIG>, the CO leakage alarm device <NUM> includes an alarm storage unit <NUM>, a CO measurement unit <NUM>, a collision detection unit <NUM>, an alarm-sounding unit <NUM>, and an alarm control unit <NUM>; and according to an embodiment, a display unit <NUM>, an input unit <NUM>, a communication unit <NUM>, and an interface unit <NUM> may be further included.

The alarm storage unit <NUM> includes a program area for storing a control program to control the overall operation of the CO leakage alarm device <NUM> according to the present disclosure, a temporary area for temporarily storing data generated during execution of the control program, and a data area for semi-permanently storing at least one of the data generated while executing the control program and the data required to execute the control program.

The data area may store identification information of the wall pad <NUM>, identification information of a user's mobile terminal, information of related authorities, etc. The identification information of the wall pad may be network address information, phone number, etc. of the wall pad, and the identification information of a user's mobile terminal may be the phone number of the user mobile terminal <NUM>, and the information of related authorities may be network address information, phone numbers capable of receiving text messages and data, etc..

The display unit <NUM> displays various information (e.g., information of operation state of the CO leakage alarm device <NUM> according to the present disclosure, etc.), buttons for operation, etc. on the screen in one or more texts, graphics, etc..

The input unit <NUM> may include one or more among a key input device that includes access information for accession into the wall pad <NUM> and a plurality of keys for setting the phone number of the user mobile terminal <NUM>, a touch pad that is integrally configured on the screen of the display unit <NUM> and outputs a position signal corresponding to the position being touched, etc..

The communication unit <NUM> includes a wired communication unit <NUM> for performing data communication by wired connection to a wired/wireless data communication unit <NUM> and a wireless communication unit <NUM> for performing data communication by wirelessly connection to the wired/wireless data communication unit <NUM>.

The wireless communication unit <NUM> may be a wireless local area network (LAN) device, and it may be connected to a WiFi network of the wired and wireless data communication unit <NUM> so as to perform wireless data communication.

The interface unit <NUM> includes a universal asynchronous receiver/transmitter (UART) communication unit <NUM>, which is connected to the wall pad <NUM> by wire to perform serial data communication as a communication means, and a connection unit <NUM>, which is directly connected to a control module <NUM> of the boiler <NUM>, and thereby allows to perform a communication between the wall pad <NUM> and the alarm control unit <NUM> and to perform a communication between the control module <NUM> and the alarm control unit <NUM>.

The CO measurement unit <NUM> measures the amount of CO through a CO measurement sensor installed within a certain distance from the boiler <NUM> and the boiler flue <NUM> and outputs the result to the alarm controller <NUM>.

The collision detection unit <NUM>, which includes a collision detection sensor connected to an arbitrary position of the boiler flue <NUM>, detects the presence/absence of a collision in the boiler flue <NUM>, and measures the impact strength value according to the collision detection, and outputs the result to the alarm controller <NUM>. The collision detection sensor may include an acceleration sensor, etc..

The alarm-sounding unit <NUM> generates an alarm under the control of the alarm controller <NUM>.

The alarm control unit <NUM>, which includes a collision monitoring unit <NUM>, a CO monitoring unit <NUM>, a CO leakage determining unit <NUM>, a boiler leakage processing unit <NUM>, a ventilation leakage processing unit <NUM>, and a leakage notification unit <NUM>, and thereby controls the overall operation of the CO leakage alarm device <NUM> according to the present disclosure.

Specifically, the collision monitoring unit <NUM> monitors whether the impact strength value is input through the collision detection unit <NUM>, and outputs the impact strength value to the CO leakage determination unit <NUM> when the impact strength value is input.

The CO monitoring unit <NUM> monitors whether the CO amount value is input through the CO measurement unit <NUM> to continuously monitor the presence/absence of CO detection, and outputs the result to the CO leakage determination unit <NUM> when the CO amount value is input.

The CO leakage determination unit <NUM> receives an impact strength value which is input from the collision monitoring unit <NUM> and a CO amount value which is input from the CO monitoring unit <NUM>, and determines the presence/absence of deviation and damage of the boiler flue <NUM> according to the impact strength value and the CO amount value. For example, when the CO leakage determination unit <NUM> has an impact strength of greater than or equal to the first reference strength, and the CO value exceeds the first reference CO value, it may be determined that the boiler flue <NUM> is deviated by <NUM>% due to the impact, or an area of X% is damaged; and if the impact strength value exceeds the first reference strength and the CO value exceeds the second reference CO value (the second reference CO value> the first reference CO value), it may be determined that the boiler flue <NUM> is deviated by <NUM>%, that an area of Y% is damaged (generation of hole(s)), etc. The first reference strength, the first reference CO amount value, the second reference CO amount value, etc. may be determined by experiments.

If the impact strength is greater than or equal to the first reference strength even when no impact has occurred, the CO leakage determination unit <NUM> may determine that the boiler flue <NUM> is deviated due to a defect in the boiler flue connection, etc. Even in this case, the CO leakage determination unit <NUM> will process in the same way as when there is a deviation or damage of the boiler flue <NUM> due to an impact.

The CO leakage determination unit <NUM> generates an alarm through the alarm-sounding unit <NUM> upon determination of deviation or damage of the boiler flue <NUM> and CO leakage.

The boiler leakage processing unit <NUM>, upon determination of CO leakage due to deviation or damage of the boiler flue <NUM> in the CO leakage determination unit <NUM>, transmits the notification information of CO leakage to the module <NUM> of the boiler <NUM> through the connection unit <NUM>.

The control module <NUM> of the boiler <NUM> having received the notification information of CO leakage recognizes the notification information of CO leakage as a request signal for a post purge, and controls the boiler ventilator <NUM> to perform a post purge.

The boiler leakage processing unit <NUM>, upon determination of CO leakage due to deviation or damage of the boiler flue <NUM> in the CO leakage determination unit <NUM>, transmits the notification information of CO leakage to the wall pad <NUM> through the UART communication unit <NUM>.

Then, the wall pad <NUM> generates an alarm through an alarm means and controls the ventilation system <NUM> so as to ventilate the air of the indoor space, where the boiler <NUM> is installed, with outdoor air.

The leakage notification unit <NUM>, upon determination of CO leakage due to deviation or damage of the boiler flue <NUM> in the CO leakage determination unit <NUM>, transmits the notification information of CO leakage to any one or more selected from the user mobile terminal <NUM> and the server of related authorities <NUM> registered in advance in the alarm storage unit <NUM>.

As described above, the notification information of CO leakage may include location information regarding the geographical location where the boiler is installed, date, time, the presence/absence of damage in the boiler flue, a CO amount value, etc..

The user mobile terminal <NUM> and the server of related authorities <NUM>, upon receiving the notification information of CO leakage, will generate an alarm and display the notification information of CO leakage through a display means (not shown).

<FIG> is a flow chart illustrating a method for discharging CO according to the present disclosure.

Referring to <FIG>, first of all, the alarm controller <NUM> of the CO leakage alarm device <NUM> monitors whether CO leakage due to deviation and damage of the boiler flue <NUM> is detected (S111).

Upon detection of CO leakage due to deviation or damage of the boiler flue <NUM>, the alarm controller <NUM> transmits the notification information of CO leakage to the control module <NUM> of the boiler <NUM> as a request signal for a post purge, and transmits the notification information of CO leakage to the wall pad <NUM> as a request signal for ventilation (S113, S115).

The control module <NUM> of the boiler <NUM>, upon receiving the request signal for ventilation (i.e., upon receiving the notification information of CO leakage), generates an alarm notifying that CO leakage has occurred through an alarm generating means (not shown) of the boiler per se or a controller installed in each room (<NUM>) (S115).

After generating the alarm, the control module <NUM> controls the boiler ventilation unit <NUM> so as to perform a post purge, and thereby discharges the gas present in the burner (not shown), the pipe (not shown), and the boiler flue <NUM> of the boiler <NUM> to the outside (S117).

In contrast, the wall pad <NUM> generates a CO leakage alarm through an alarm means (not shown) (S121) and controls the ventilation system <NUM> so as to perform an external ventilation mode (S123).

Additionally, according to an embodiment, the alarm controller <NUM> of the CO leakage alarm device <NUM> may transmit the notification information of CO leakage to the server of related authorities <NUM> and the user mobile terminal <NUM> (S125, S127).

The server of related authorities <NUM>, upon receiving the notification information of CO leakage, will generate an alarm to the corresponding department of the related authorities and displays the notification information of CO leakage (S127).

The user mobile terminal <NUM>, which has received the notification information of CO leakage, will also generate an alarm (S131). The user mobile terminal <NUM> may also be configured to display notification information of CO leakage.

<FIG> is a flow chart illustrating a method for generating an alarm of CO leakage by a CO leakage alarm device according to the present disclosure, and is a flowchart illustrating a method for determining a CO leakage due to damage of a release hole in a CO leakage alarm device.

Referring to <FIG>, the alarm controller <NUM> monitors whether a collision is detected through the collision detection unit <NUM> (S211).

When a collision is detected, the alarm controller <NUM> will be able to check whether the boiler operates through the control module <NUM> of the boiler <NUM> (S213).

After checking whether the boiler operates, the alarm controller <NUM> determines whether the boiler is under operation (S215), and when the boiler is under operation, it sets up a collision occurrence flag informing that a collision has occurred (S217).

Meanwhile, when the boiler is under operation, the alarm controller <NUM> measures the amount of CO through the CO measurement unit <NUM> (S219).

Upon measurement of the amount of CO, the alarm controller <NUM> checks whether the measured amount of CO exceeds the reference amount of CO (S221).

When the measured CO amount exceeds the reference CO amount, CO leakage due to damage of the boiler flue <NUM> is determined.

In the description above, the presence/absence of CO leakage was determined only based on the presence/absence of the damage of the boiler flue <NUM> and one reference value of CO, but the degree of deviation and damage of the boiler flue may be estimated in detail as described above by comparing the collision strength value and the CO amount value with a number of reference levels having mutually-different CO values and CO amount values.

Meanwhile, when a collision is not detected in the boiler flue <NUM>, the alarm controller <NUM> measures the CO amount of through the CO measurement unit <NUM> (S225).

After measuring the CO amount, the alarm controller <NUM> determines whether the measured CO is greater than or equal to a preset reference amount of CO (S227).

When the measured CO amount is higher than the reference CO amount, the alarm controller <NUM> examines the collision occurrence flag and determines whether the collision has occurred before a preset reference time based on whether the collision occurrence flag is set to three (S229).

If the collision has ever occurred within a certain period of time, the alarm control unit <NUM> estimates that CO leaks due to damage to the boiler flue (S231).

However, if no collision has occurred within a certain period of time, the alarm controller <NUM> estimates that the boiler flue <NUM> has been naturally damaged or CO leakage has been damaged due to an installation error (S233).

<FIG> is a flow chart illustrating a method of notifying related authorities among the methods of discharging CO according to the present disclosure, and it is a flow chart which can be performed in any one or more of the CO leakage alarm device <NUM>, the control module <NUM>, the wall pad <NUM>, and the user mobile terminal <NUM>. However, in the description herein below, for the convenience of description, the description is limited to the case performed by the user mobile terminal <NUM>.

The user mobile terminal <NUM> checks whether an alarm event occurs due to reception of the notification information of CO leakage from the CO leakage alarm device <NUM> (S311).

When the alarm event occurs, the user mobile terminal <NUM> generates an alarm (S313).

After the alarm is generated, the user mobile terminal <NUM> counts the notification time to authorities (S315), and checks whether the notification time being counted to authorities exceeds a preset certain reference time (S317), and whether the alarm is released before the preset reference time (S319).

If the alarm is released before the notification time to authorities exceeds the reference time, the process is terminated, whereas if the alarm is not released until the notification time to authorities exceeds the reference time, the notification information of CO leakage is transmitted to the preset server of related authorities <NUM> (S321).

Claim 1:
A system for discharging carbon monoxide (CO) comprising a CO leakage alarm device (<NUM>), comprising:
a boiler (<NUM>), which comprises a burner and a boiler flue (<NUM>) configured to discharge gas generated during combustion of the burner to an outside, wherein the boiler (<NUM>) is configured to perform a post purge by recognizing notification information of CO leakage as a request signal for the post purge upon receiving the notification information of CO leakage;
a ventilation system (<NUM>), configured to ventilate indoor air by circulating the indoor air and outdoor air upon receiving a request for outdoor air ventilation control;
a wall pad (<NUM>) configured to generate an alarm upon receiving the notification information of CO leakage, recognize the notification information of CO leakage as a request signal for ventilation, and perform a request for controlling outdoor air ventilation by the ventilation system (<NUM>);
wherein the CO leakage alarm device (<NUM>) is configured to measure an amount of CO generated by the boiler (<NUM>) and transmit the notification information of CO leakage;
characterised in that the CO leakage alarm device (<NUM>) is configured to: detect an impact applied to the boiler flue (<NUM>), determine a presence/absence of CO leakage due to a deviation of the boiler flue (<NUM>) according to an impact strength value and the amount of CO upon detection of the impact applied to the boiler flue (<NUM>), and generate an alarm depending on the presence/absence of CO leakage due to the deviation of the boiler flue (<NUM>).