TWM618444U - Vehicle safety warning device - Google Patents

Abstract

This creation provides a vehicle safety warning device, which mainly includes: an electronic door switch for opening or closing the door, a speaker unit, and a central control unit. The central control unit includes a lock switch module and a control module. When the electronic door switch closes the door, the lock switch module is operated twice in succession. During the first operation, the control module only generates a door opening warning signal, and the door cannot be opened. , The loudspeaker unit emits a door open warning sound (such as the voice prompt "Please pay attention to the car coming behind when you open the door"). Until the second operation, the control module generates an unlock signal, and the electronic door switch opens the door according to the unlock signal. To remind the driver to avoid the danger of accidents that need to be paid attention to during the driving of the vehicle.

Description

Vehicle safety warning device

A warning device, especially a vehicle safety warning device.

Nowadays, you can see from time to time reports in newspapers and magazines about driving disputes or car accidents. The causes are often less noticed. For example, opening the door from the car in a hurry without paying attention to the incoming car from behind, opening the door at will, causing a car accident due to the lack of dodge of the automobile and locomotive. Or, accidents such as theft or theft of vehicles parked on the roadside or in public parking lots by unknown persons are often heard.

What's more, in the end of the spring wine season, passers-by use a fluke mentality to get drunk and drive slightly, causing news incidents of misfortunes for others and their own families. Even when driving in winter, closing the doors tightly leads to accumulation of carbon dioxide and driving fatigue, as well as car accidents due to fatigue driving and so on.

In view of the above problems, this creation provides a vehicle safety warning device, including: an electronic door switch to open or close the door; a central control unit connected to the electronic door switch, including a lock switch module and a control module, to close the door with the electronic door switch, The lock switch module is operated twice within a predetermined door opening time. When the lock switch module is operated for the first time within the predetermined door opening time, the control module generates a door opening warning signal, and the lock switch module is operated second At this time, the control module generates an unlocking signal, and the electronic door switch opens the door according to the unlocking signal; and the speaker unit, connected to the central control unit, generates a door-opening warning sound according to the door-opening warning signal.

This creation uses this two-stage door opening warning design. When opening the door for the first time, it reminds the people in the car to pay more attention when opening the door, pay attention to the car behind the car, and open the door when the door is opened in the second operation. In this way, to prevent accidents caused by opening doors at will. It may further include a car surrounding image capturing unit, and when the car door is opened for the first time, the door opening reminder can be a double reminder of the door opening warning sound and the car surrounding image display.

Furthermore, the vehicle safety warning device of the present invention may further include an electronic fence sensing unit to draw a car's electronic defense line around the vehicle body and have an anti-theft alarm function.

In some embodiments, the vehicle safety warning device of the present invention further includes a storage module that stores characteristic images of the vehicle owner, a pressure sensor, and a photographing unit, and uses image recognition to identify whether the person in the driver's seat is the vehicle owner. Coupled with the dual settings of the central control unit and smart key induction, it has the smart function of keyless starting of the vehicle.

Furthermore, the smart key of the vehicle safety warning device of the present invention may further include an alcohol sensing unit, which senses the alcohol concentration of the person in the driver's seat before driving to determine whether it exceeds the limit. If it exceeds the set value, a drunk driving warning sound will sound and the vehicle start signal cannot be generated.

Specific examples are listed below to illustrate the content of this creation in detail, and the diagrams are used as an auxiliary description. The symbols mentioned in the manual refer to the symbol description.

Please refer to FIG. 1. FIG. 1 is a block diagram (1) of a vehicle safety warning device according to an embodiment of the creation. In addition, the information exchange mentioned below can be a one-way information exchange or a two-way information exchange, and the data exchange can be, for example, the transmission of messages or images, the transmission of commands, etc., and is not limited to the foregoing. .

The vehicle safety warning device 1 of the present invention can be applied to various types of vehicles, such as passenger cars, trucks, and various engineering vehicles, etc. However, the foregoing is only an example and not a limitation.

The vehicle safety warning device 1 of the present invention may include: an electronic door switch 3, a central control unit 2, and a speaker unit 4.

The electronic door switch 3 can be an electronic door switch that does not require a key jack, or an electronic central control lock is installed on the door switch to open or close the vehicle door.

The central control unit 2 may be a vehicle host, or a control device that can be connected to the vehicle host, but not limited to this.

The central control unit 2 is connected to the electronic door switch 3 and includes a lock switch module 21 and a control module 22. When the electronic door switch 3 closes the door, the lock switch module 21 is operated twice within a predetermined time when the door is opened. When the lock switch module 21 is operated for the first time within the predetermined time when the door is opened, the control module 22 generates a door opening warning signal, and the speaker unit 4 generates a door opening warning sound according to the door opening warning signal. When the lock switch module 21 is operated for the second time, the control module 22 generates an unlock signal, and the electronic door switch 3 opens the door according to the unlock signal.

The speaker unit 4 can be a speaker, a car-mounted horn, a buzzer, or a device that can emit sound, etc., but not limited to this.

The two-stage door-opening warning design reminds people in the car to pay more attention when opening the door, pay attention to vehicles coming from the rear of the car, and prevent the opening of the door from causing a car accident.

For example, when the door is closed, when the occupant in the car needs to open the door and get off, press or pull up the electronic door switch 3 inside the door, the lock switch module 21 senses the pressing force value, for example, within 5 seconds , The lock switch module 21 needs to feel the force twice in a row. When the force is applied for the first time, the control module 22 generates a door opening warning signal, and the speaker unit 4 emits a door opening warning sound, for example, "Please pay attention to the coming cars behind when you open the door. The voice of ". When the force is applied for the second time, the control module 22 generates an unlock signal to open the door.

Furthermore, the vehicle safety warning device 1 may also include a vehicle surrounding image capturing unit 5 and a display unit 6. The vehicle surrounding image capturing unit 5 is connected to the central control unit 2 to capture images around the vehicle body and transmit the vehicle image to the central control unit 2. The display unit 6 is connected to the central control unit 2, and displays the vehicle image according to the door opening warning signal.

The surrounding image capturing unit 5 of the vehicle may be a 360-degree surrounding view recording device, which is installed around the vehicle body for capturing surrounding view images.

The display unit 6 can be any display screen or display.

When the electronic door switch 3 is stressed for the first time, in addition to the loudspeaker unit 4, it can give an audible warning. It can also display the vehicle image captured by the car surrounding image capture unit 5 through the display unit 6, so that the occupants in the car can There are both audible and visual reminders, and it is clearer whether there are any dangerous obstructions outside the door, which increases safety.

In this embodiment, the vehicle safety warning device 1 also includes an electronic fence sensing unit 7 that can work with the surrounding image capturing unit 5 to draw the car's electronic defense line. As long as an object enters the aforementioned car's electronic defense line, it will be activated immediately Image sensing. In this way, if someone is sabotaged, the car owner can be notified immediately or a warning sound can be issued.

The electronic fence sensing unit 7 can be a sensor around the car, which generates a reminder signal when any event occurs. The aforementioned events can be, for example, the opening of a car door, a broken car window, a scratched car body, and a vibration of the car. Limited by this.

Specifically, the electronic fence sensing unit 7 is installed around the vehicle body to sense whether an object enters a preset range, and when it senses that an object enters the preset range, the electronic fence senses The measuring unit 7 generates a prompt signal and transmits it to the image capturing unit 5 around the car.

The car surrounding image capturing unit 5 may further include a human figure sensing module 51 and a heat source sensing module 52. The human figure sensing module 51 activates human figure sensing according to the aforementioned prompt signal, and transmits the human figure sensing image to the central control unit 2. The heat source sensing module 52 starts the heat source sensing according to the aforementioned prompt signal, and transmits the heat source sensing image to the central control unit 2. The control module 22 cross-compares the human figure sensing image and the heat source sensing image to determine the human figure of the human figure sensing image Whether the area matches the heat source area of the heat source sensing image, when the humanoid area and the heat source area match, the control module 22 generates an approaching warning signal, and the central control unit 2 transmits an approaching notification to the electronic device 8 according to the approaching warning signal.

For example, when the owner leaves the vehicle, when someone intends to deliberately destroy the vehicle, the electronic fence area established around the vehicle body through the electronic fence sensing unit 7 and the surrounding image capturing unit 5, once an object is detected Entering this electronic fence, it immediately starts to further determine whether it is deliberately damaged by human beings. For this reason, the human figure sensing module 51 senses the human figure sensing image and the heat source sensing image sensed by the heat source sensing module 52 together. Transmitted to the central control unit 2, the control module 22 thermally displays cross-comparison with whether the humanoid area of the humanoid sensing image matches the heat source area of the heat source sensing image. When the humanoid area and the heat source area match, the car owner can also be instantly informed through the mobile phone. Notify of the destruction.

The control module 22 thermally displays the cross-comparison between the human-shaped area of the human-shaped sensing image and the heat source area of the heat-source-sensing image to eliminate accidental touch events such as only a human shadow or a human-shaped standing sign nearby, and there is no need to notify the car owner.

In some embodiments, the vehicle can also be activated through intelligent face detection and keyless activation, which has a smart anti-theft function. The vehicle safety warning device 1 may further include a storage module 24, a pressure sensor 9 and a photographing unit 10. The storage module 24 stores the characteristic image of the vehicle owner. The pressure sensor 9 senses the pressure value of the human body sitting in the seat, and generates a driving signal when a pressure value is sensed. The camera unit 10 captures an image of the driver's seat according to the driving signal, and transmits the driving image to the central control unit 2. The control module 22 of the central control unit 2 determines whether the aforementioned driving image matches the characteristic image of the vehicle owner stored in the storage module 24 according to the vehicle driving signal, and generates a first driving signal when it matches the characteristic image of the vehicle owner. Here, the central control unit 2 senses the smart key 14 to generate a second driving signal, and the central control unit 2 generates a start vehicle signal when receiving the first driving signal and the second driving signal within a predetermined period.

For example, the pressure sensor 9 may be a gravity pressure sensor, and the photographing unit 10 may be an in-vehicle camera to photograph a driving image of a driver's seat.

The smart key 14 may be any vehicle loaded with an RFID (Radio Frequency Identification) system chip, such as a remote control or a smart watch. Or any smart vehicle that can sense and transmit identification ID with the central control unit 2.

For example, when the pressure sensor 9 senses that a person is sitting on the driver's seat, it generates a driving signal to start the imaging unit 10 to capture images. The camera unit 10 transmits the driving image to the central control unit 2 based on this, and the control module 22 initiates face determination to determine whether the driving image is the owner of the car, and generates a first driving signal when it meets the characteristics of the owner's image.

At the same time, the central control unit 2 senses the message sent by the smart key 14 to generate a second driving signal. The central control unit 2 receives the first driving signal and the second driving signal within a predetermined period (for example, within 1 minute), and confirms whether the owner is the vehicle through image recognition, plus the double confirmation of the smart key 14 induction. Start the vehicle signal to start the vehicle.

In this embodiment, this creation can also send a notification to notify the owner when the vehicle moves abnormally. The aforementioned abnormal movement may be caused by someone else stealing the vehicle and starting the vehicle abnormally, or the stalled vehicle being towed and moved, etc. Not limited to this.

The central control unit 2 may further include a positioning module 23 for sensing the coordinate position of the vehicle and transmitting the vehicle position to the control module 22. When the central control unit 2 fails to receive the first driving signal and the second driving signal within the predetermined period, the control module 22 determines that the vehicle position displacement exceeds a set distance, such as 50 meters, and the control module 22 will cause the vehicle to move. Signal. In other words, if the vehicle has not been started by an abnormal vehicle with face recognition and smart key sensing, and the vehicle has moved more than 50 meters, the control module 22 will determine that it has moved abnormally, and the owner needs to be notified.

The central control unit 2 can transmit a notification of vehicle movement to the electronic device 8 according to the aforementioned vehicle movement signal, so as to immediately notify the vehicle owner of the abnormal condition.

The electronic device 8 can be a computer, an electronic device, or any mobile device (such as a smart phone, a tablet computer, a notebook computer, a smart watch, etc.), and can receive and display notifications from the central control unit 2, which can be near notifications, vehicles Mobile notification, fire warning notification, etc.

On the other hand, this creation can also have a drunk driving reminder function. The smart key 14 also includes an alcohol sensing unit 11, which senses the alcohol concentration, and transmits the alcohol sensing value to the central control unit 2. The control module 22 determines whether the alcohol sensing value exceeds a set value according to the driving signal, and then exceeds the aforementioned set value. When a drunk driving signal is generated, the speaker unit 4 generates a drunk driving warning sound according to the drunk driving signal, and the central control unit 2 does not generate a second driving signal according to the drunk driving signal.

The alcohol sensing unit 11 may be installed on a portable electronic device (for example, a smart key, a smart watch, or a watch band, etc.) or an in-vehicle driving device (for example, a steering wheel, a car panel, etc.).

For example, when the driver's seat is in the driver's seat, the pressure sensor 9 senses the pressure value to generate a driving signal, and the camera unit 10 is activated for image shooting. At the same time, the control module 22 judges whether the alcohol concentration exceeds the limit according to the driving signal. When the alcohol sensing value reaches the aforementioned set value, the control module 22 will generate a drunk driving signal, and the speaker unit 4 will emit a drunk driving warning sound, for example, a voice warning of "drinking and driving". At this time, according to the drunk driving signal, the central control unit 2 can sense the smart key 14 but not generate the second driving signal; or, it does not sense the smart key 14 nor does it generate the second driving signal, either way it does not generate the second driving signal. Make the vehicle unable to start, in order to achieve the effect of preventing drunk driving.

Further, the storage module 24 of the central control unit 2 can also record an alcohol test event based on the driving image and the alcohol sensing value. The control module 22 compares the driving image to the driving image according to the vehicle driving signal to see if it matches the driving image of the previous alcohol test event. When the driving image does not match the driving image of the previous alcohol test event, it generates a alcohol test reminder signal. The reminder signal generates a reminder sound for the alcohol test. In this way, as long as the driver is different than the driver, it will be reminded that the alcohol test needs to be carried out to prevent the driver from changing after the alcohol test passes.

For example, when the person A sits in the driver's seat and drives the vehicle through the alcohol test, the storage module 24 will record the driving image and the alcohol detection event of the person A before starting the vehicle. If Person A leaves the driver’s seat and sits in the driver’s seat again or replaces Person B’s driving, at this time, because the storage module 24 stores the driving images of each alcohol test event, when the control module 22 senses the pressure from the seat The driving signal from the device 9 is executed to compare whether the driving image captured by the photographing unit 10 matches the driving image of the last alcohol test event record stored by the storage module 24. The two images do not match, and it is determined that the driver is not the same person. The loudspeaker unit 4 will emit a wine test reminder sound to remind the person B to perform the wine test.

In another embodiment, the smart key 14 may further include a physiological index monitoring module 16, which senses the physiological value and transmits it to the remote device 15. The remote device 15 monitors the physiological value and generates an abnormality in the physiological value. The health warning is sent to the physiological index monitoring module 16. The physiological index monitoring module 16 sends out a health warning notification according to the health warning, and the central control unit 2 does not generate the second driving signal according to the health warning notification.

For example, the physiological index monitoring module 16 of the smart key 14 can sense physiological indexes such as heart rate or electrocardiogram, and these physiological values are transmitted to the remote device 15. The remote device 15 can be the AI data cloud server of the medical center, which can monitor Whether the aforementioned physiological values are abnormal. If it is abnormal, the physiological index monitoring module 16 or the loudspeaker unit 4 can issue a warning to remind the driver to pay attention to the physiological condition, so as to prevent the driver from driving on the road without noticing his heart problem, and even preventing the vehicle from starting. An overworked driving situation occurs.

In another embodiment, the present creation can also provide in-vehicle gas sensing alarms. The vehicle safety warning device 1 further includes a gas sensing unit 13. When the electronic door switch 3 closes the door, it senses the gas concentration inside the vehicle body according to the driving signal, and transmits a gas concentration to the central control unit 2, and the control module 22 determines the gas Whether the concentration reaches a concentration dangerous value interval, when it reaches the concentration dangerous value interval, a dangerous driving signal is generated, and the loudspeaker unit 4 generates a driving reminder sound according to the dangerous driving signal to remind the driver that the concentration of harmful gas in the car interior is too high, requiring careful attention .

The gas sensing unit 13 can sense one of oxygen, nitric oxide, carbon monoxide, and carbon dioxide.

For example, when the concentration of carbon monoxide or carbon dioxide in the air in the car body is too high, it is easy to cause driving fatigue and even lead to poisoning. Through the gas sensing mechanism created by this invention, the driver can be reminded to pay attention to the air condition in the car in real time, so as to avoid the occurrence of regrets.

In addition, in some embodiments, this creation can also provide a fire alarm. The vehicle safety warning device 1 may further include a temperature sensing unit 12, which senses the temperature inside the vehicle body and transmits the vehicle temperature to the central control unit 2. The control module 22 determines that the vehicle temperature exceeds a temperature setting value and generates a fire warning signal to raise The sound unit 4 generates a fire warning sound according to the fire warning signal. In addition, the central control unit 2 may also transmit a fire warning notification to the electronic device 8 according to the fire warning signal.

For example, the temperature sensing unit 12 can sense the internal and external temperature of the vehicle body. If the control module 22 determines that the temperature of the vehicle exceeds 75 degrees (75 degrees is only for illustration, it is not a limitation of this creation), the speaker unit 4 can A fire warning sound is issued, and at the same time, the vehicle owner can be notified of the fire incident.

To sum up, the vehicle safety warning device disclosed in this creation uses two-stage door opening voice prompts, both auditory and visual reminders, to avoid accidents caused by opening doors at will, and is equipped with smart anti-theft, keyless start of the vehicle, and drunk driving before driving. Multiple functions such as reminder, in-vehicle gas sensing to prevent fatigue driving, and fire alarm notification.

Through the above detailed description, it can be fully demonstrated that the purpose and effect of this creation are progressive in implementation, have great industrial use value, and are new creations that have not been seen before on the market. They fully meet the requirements of patents. submit application. Only the above descriptions are only the preferred embodiments of this creation, and should not be used to limit the scope of implementation of this creation. That is to say, all the equal changes and modifications made in accordance with the scope of this creation patent should fall within the scope of the new patent. Please ask your reviewer to appraise it and pray for your approval.

1: Vehicle safety warning device 2: Central control unit 21: Lock switch module 22: Control module 23: Positioning module 24: storage module 3: Electronic door switch 4: speaker unit 5: Image capture unit around the car 51: Humanoid sensor module 52: Heat source sensing module 6: Display unit 7: Electronic fence sensing unit 8: Electronic device 9: Pressure sensor 10: Photography unit 11: Alcohol sensing unit 12: Temperature sensing unit 13: Gas sensing unit 14: Smart key 15: remote device 16: Physiological Index Monitoring Module

[Figure 1] Block diagram (1) of the vehicle safety warning device according to an embodiment of this creation.

1: Vehicle safety warning device

2: Central control unit

21: Lock switch module

22: Control module

23: Positioning module

24: storage module

3: Electronic door switch

4: speaker unit

5: Image capture unit around the car

51: Humanoid sensor module

52: Heat source sensing module

6: Display unit

7: Electronic fence sensing unit

8: Electronic device

9: Pressure sensor

10: Photography unit

11: Alcohol sensing unit

12: Temperature sensing unit

13: Gas sensing unit

14: Smart key

15: remote device

16: Physiological Index Monitoring Module

Claims (12)

A vehicle safety warning device, comprising: an electronic door switch to open or close a door; a central control unit connected to the electronic door switch, including a lock switch module and a control module, the electronic door switch closes the door , The lock switch module is operated twice within a predetermined time when the door is opened, and when the lock switch module is operated for the first time within the predetermined time when the door is opened, the control module generates a door opening warning signal, and the lock When the switch module is operated for the second time, the control module generates an unlock signal, and the electronic door switch opens the door according to the unlock signal; and a loudspeaker unit, connected to the central control unit, generates an unlock signal according to the door opening warning signal The door opening warning sounded. The vehicle safety warning device according to claim 1, further comprising: a vehicle surrounding image capturing unit connected to the central control unit, capturing a surrounding image outside the vehicle body and transmitting a vehicle image to the central control unit; and A display unit is connected to the central control unit, and displays the vehicle image according to the door opening warning signal. The vehicle safety warning device according to claim 1, further comprising: an electronic fence sensing unit, connected to the central control unit, installed around the outer periphery of a vehicle body, and sensing whether there is When an object enters, when an object is detected, the electronic fence sensing unit generates a prompt signal; and a car surrounding image capture unit connected to the central control unit, including a human figure sensing module and a heat source sensor The humanoid sensor module activates the humanoid sensor according to the prompt signal to generate A human-shaped sensing image is transmitted to the central control unit, the heat source sensing module activates heat source sensing according to the prompt signal, generates a heat source sensing image and transmits it to the central control unit, and the control module cross-compares the Whether the human-shaped area of the human-shaped sensing image matches the heat source area of the heat source sensing image, when the human-shaped area of the human-shaped sensing image matches the heat source area of the heat source sensing image, the control module generates an approaching warning signal, the middle The control unit transmits an approach notification to an electronic device according to the approach warning signal. The vehicle safety warning device according to claim 1, further comprising: a storage module connected to the control module to store a characteristic image of the vehicle owner; a pressure sensor connected to the central control unit to sense the position of a seat When a pressure value is received, when the pressure value is greater than or equal to a preset value, a car driving signal is generated; and a camera unit is connected to the central control unit to capture the driver seat image according to the car driving signal and send a driving image to The central control unit, the control module determines whether the driving image matches the characteristic image of the vehicle owner according to the driving signal, generates a first driving signal when it matches the characteristic image of the vehicle owner, and the central control unit senses a smart key to generate a A second driving signal. The central control unit receives the first driving signal and the second driving signal within a predetermined period to generate a start vehicle signal. The vehicle safety warning device described in claim 4 further includes a positioning module connected to the control module to sense the coordinate position of the vehicle, and transmit a vehicle position to the control module, when the central control unit is in the predetermined period When the first driving signal and the second driving signal are not received, and the control module determines that the vehicle position displacement exceeds a set distance, a vehicle movement signal is generated, and the central control unit transmits a vehicle according to the vehicle movement signal Mobile notification to an electronic device. The vehicle safety warning device according to claim 4, further comprising a gas sensing unit connected to the central control unit, sensing the gas concentration inside the vehicle body according to the driving signal, and transmitting a gas concentration to the central control unit, the control The module determines whether the gas concentration reaches a concentration dangerous value interval, and generates a dangerous driving signal when the gas concentration reaches the dangerous concentration value interval, and the loudspeaker unit generates a driving reminder sound according to the dangerous driving signal. The vehicle safety warning device according to claim 4, wherein the smart key further includes an alcohol sensing unit that senses the concentration of alcohol and transmits an alcohol sensing value to the central control unit, and the control module is based on the driving signal Determine whether the alcohol sensing value exceeds a set value. When the set value is exceeded, a drunk driving signal is generated. The central control unit does not generate the second driving signal according to the drunk driving signal, and the speaker unit generates a drunk driving signal according to the drunk driving signal. The drunk driving warning sounded. The vehicle safety warning device according to claim 7, wherein the storage module records an alcohol test event according to the driving image and the alcohol sensing value, and the control module compares whether the driving image matches the driving image according to the driving signal When the driving image of the alcohol test event does not match the driving image of the alcohol test event, a alcohol test reminder signal is generated, and the speaker unit generates a alcohol test reminder sound according to the alcohol test reminder signal. The vehicle safety warning device according to claim 4, wherein the smart key further includes a physiological index monitoring module that senses a physiological value and transmits it to a remote device, and the remote device monitors the physiological value in the When the physiological value is abnormal, a health warning is generated to the physiological index monitoring module, the physiological index monitoring module sends out a health warning notification according to the health warning, and the central control unit does not generate the second driving signal according to the health warning notification . The vehicle safety warning device according to claim 9, wherein the physiological index monitoring module transmits a health warning signal to the central control unit according to the health warning, and the loudspeaker unit generates a health warning reminder sound according to the health warning signal. The vehicle safety warning device according to claim 4, further comprising: a steering wheel to control the direction of the vehicle; and an alcohol sensing unit, which connects the steering wheel to the central control unit, senses the alcohol concentration, and transmits an alcohol sensing value To the central control unit, the control module determines whether the alcohol sensing value exceeds a set value according to the vehicle driving signal, and generates a drunk driving signal when it exceeds the set value, and the central control unit does not generate the second alcohol driving signal according to the drunk driving signal. 2. Driving signal, the loudspeaker unit generates a drunk driving warning sound according to the drunk driving signal. The vehicle safety warning device according to claim 1, further comprising a temperature sensing unit, which senses the internal and external temperature of a vehicle body, transmits a vehicle temperature to the central control unit, and the control module determines that the vehicle temperature exceeds one The temperature setting value generates a fire warning signal, and the central control unit transmits a fire warning notice to an electronic device according to the fire warning signal.

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