TECHNICAL FIELD
[0001] The present disclosure relates to the technical field of fire detection, and in particular, to wearable device for detecting fire and gas leakage in a premises and facilitates in alerting automatically.

BACKGROUND
[0002] Many cities around the world have been developing very rapidly, and they may have very high population and require a large number of high-rise buildings and large-scale industrialization. These large-scale developments and industrialization become the source of potential fire hazard. At the same time, however, the awareness of fire safety among people in these cities is decreasing. Conflagration can cause a large number of deaths and injuries.
[0003] When fire occurs, the single most important task is to accurately ascertain the source of the fire and combat the fire so as to prevent it from rapidly spreading to other areas. Conventional fire detectors have been developed and widely utilized to detect certain indicators of fire. For example, smoke detectors have been developed to detect smoke which is a major indicator of fire. Other detectors include flame detectors, heat detectors or fire gas detectors.
[0004] Liquefied petroleum gases (LPG’s) and other gases are well known for their utilities, whether it being residential or commercial. Residential purpose includes cooking, which employs the gas in the gas-tanks, reservoirs or gas conduits installed in the houses or residential places. Commercially too, there are various types of gases such as LPG, nitrogen asphyxiation that are toxic or harmful in nature but are used in the industries for different purposes. Also, there may be certain reasons for leaking of the gases that are used domestically or commercially and can be proven as dangerous and lethal to the people residing in the nearby areas. These gases must be handled with care to avoid any casualty in homes or industries.
[0005] There are various systems and methods known in the art that are adapted to detect/monitor gas leakage in the industries or even in the houses but the systems of the prior arts are not capable to reduce casualty that may occur due to such leak. Thus the systems and methods of the prior art are inefficient in solving their purpose of being employed in industries or in the houses.
[0006] Nowadays, many wearable technologies have been developed such as wearable electronic or smart watches. Various operations may be performed with a smart watch such as detection of user’s body motion, heart rate, time of sleep, quality of sleep, hydration, inflammation, contraction, fatigue, etc. However, no wearable is available to detect fire and gas leakage in the premises accurately, and reduce false fire alarm.
[0007] There is, therefore, a need in the art to provide an efficient solution that can obviate the above mentioned limitations, and provides a wearable device for reducing casualty due to fire and gas leakage.

OBJECTS OF THE PRESENT DISCLOSURE
[0008] A general object of the present disclosure is to obviate the above-mentioned problems and assists in detection of fire and gas inside a premises.
[0009] Another object of the present disclosure is to provide a wearable device to detect fire.
[0010] Another object of the present disclosure provides a wearable device to prevent a lot of accidents which are caused by fire and liquefied petroleum gas leakage.
[0011] Another object of the present disclosure provides a wearable device to reduce the casualty in the premises from gas leakage.
[0012] Another object of the present disclosure provides a wearable device to notify owner of the premises, and notify fire station also.

SUMMARY
[0013] Various aspects of the present disclosure relates to the technical field of fire detection. In particular, to wearable device for detecting fire and gas leakage in a premises and facilitates in alerting automatically.
[0014] According to an aspect, the present disclosure pertains to a wearable device having a housing, one or more sensors may be located inside the housing and configured to detect one or more fire characteristics in a pre-defined area, and correspondingly generate a set of signals, a display unit may be located on front side of the housing to display information, a wireless communication circuitry may be located inside the housing, and configured to wirelessly connect the wearable device with a mobile computing device, and a processing unit operatively coupled to the one or more sensors and the display unit.
[0015] In an aspect, the processing unit may including a processor coupled with a memory, the memory store instructions that, when executed, cause the processor to receive the set of signals from the one or more sensors, extract level of each of the one or more fire characteristics, generate a first warning signal and a second warning signal, upon detection of value of at least one of the one or more fire characteristics beyond an associated pre-defined range, wherein the first warning signal is transmitted to an alert unit configured to the wearable device, and the second warning signal is transmitted to the associated mobile computing device, and generate, by the alert unit, a sound based on the received first warning signal.
[0016] In an aspect, upon receiving the second warning signal, the associated mobile computing device produce the sound through a speaker of the mobile computing device and display a message on a screen of the mobile computing device.
[0017] In an aspect, the one or more sensors may include a photoelectric sensor configured to detect smouldering fire in the pre-defined area.
[0018] In an aspect, one or more sensors may include a MQ2 Gas sensor configured to detect concentration of one or more gases in air of the pre-defined area.
[0019] In an aspect, the one or more sensors may include an optical smoke sensor configured to detect smoke particles in the pre-defined area.
[0020] In an aspect, the one or more sensors may include an electrochemical oxygen sensor configured to detect concentration of oxygen in the air of the pre-defined area.
[0021] In an aspect, the one or more fire characteristics comprises any or a combination of temperature, smoke, flame height, fire intensity, frequency, flame angle, and flame depth.
[0022] In an aspect, the wireless communication circuitry may be selected from a group consisting of Wireless Fidelity (Wi-Fi), Bluetooth, Li-Fi, Wireless Local Area Network (WLAN), ZigBee, and GSM module.
[0023] In an aspect, one or more push-buttons may be provided on the housing, and upon actuation of at least one of the one or more push-buttons, the one or more sensors gets activated to detect one or more fire characteristics in the pre-defined area.
[0024] In an aspect, upon actuation of the at least one of the one or more buttons, the alert unit may be deactivated.
[0025] Various objects, features, aspects and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.

BRIEF DESCRIPTION OF THE DRAWINGS
[0026] The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
[0027] FIG. 1 illustrates an exemplary block diagram of the proposed system, in accordance with an exemplary embodiment of the present disclosure.
[0028] FIG. 2 illustrates an exemplary flowchart in order to explain its working, in accordance with an exemplary embodiment of the present disclosure.

DETAILED DESCRIPTION
[0029] The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such details as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosures as defined by the appended claims.
[0030] Embodiments explained herein relate to fire detection. In particular, the present disclosure provides to a wearable device for detecting fire and gas leakage in a premises and facilitates in alerting automatically.
[0031] According to an embodiment, the present disclosure elaborates upon a wearable device such as watch to be used in a premises for example, home, offices buildings, shopping malls, industry and etc. The wearable can be configured to detect fire and gas leakage in the premises, and correspondingly generate alert on the wearable device. In case of an uncontrollable fire, automatically notify fire station and police station located nearby the premises.
[0032] FIG. 1 illustrates an exemplary block diagram of the proposed system in order to explain its working, in accordance with an exemplary embodiment of the present disclosure.
[0033] According to an embodiment of the present disclosure, a wearable device 100 for detecting fire and gas leakage in a pre-defined area is disclosed. The wearable device 100 can be a watch, smartwatch, band, and the likes. The wearable device 100 can include a housing 102 that can be of a number of variations of shape but can be conveniently made a rectangular, approaching a box-like configuration. The wearable device 102 can be an expansion band or a wrist watch strap of plastic, leather or woven material. Although a wearable device 102 is disclosed, a number of substitutes may be used, including a belt, a ring holder, a brace, or a bracelet, among other suitable substitutes known to one skilled in the art. The housing 102 contains one or more sensors 104, a wireless communication circuitry 108, and a processing unit 110 and associated peripherals to provide the human-machine interface. A display unit 106 can be located on the front side of the housing 102. An alert unit 112, such as speaker, a microphone, and a plurality of push-buttons 114 are also located on the housing 102.
[0034] In an embodiment, the one or more sensors 104 (collectively referred as sensors 104, and individually referred as sensor 104) can be located inside the housing 102, and configured to detect one or more fire characteristics in a pre-defined area. Upon detection of at least one of the fire characteristics, the associated sensor 104 can generate a set of signals.
[0035] In an embodiment, the housing 102 can include a photoelectric sensor 104-1 that can be configured to detect smouldering fire in the pre-defined area. In the sensing chamber of photoelectric sensor 104-1, a light-emitting diode and a light-sensitive sensor can be positioned. The straight line of the LED light beam gets scattered by even a little presence of suspended smoke particles, then these scattered lights can be detected by the photoelectric sensor 104-1 and correspondingly the first set of signals are generated.
[0036] In an embodiment, the housing 102 can include a MQ2 Gas sensor 104-2 that can be configured to detect concentration of one or more gases in air of the pre-defined area. The MQ2 gas sensor is an electronic sensor that can be used for sensing the concentration of one or more gases in the air of premises (such as industries). The pone or more gases can be harmful gases such as LPG, propane, methane, hydrogen, alcohol, smoke and carbon monoxide.
[0037] In an embodiment, the housing 102 can include an optical smoke sensor 104-3 that can be configured to detect smoke particles in the pre-defined area. The optical smoke sensor 104-3 can work based on light-scattering principle, in normal state, IR LED emits Infrared light beams, and there is a barrier in optical chamber that prevents IR lights from reaching photodiode. In case of fire, smoke particles get into optical chamber of optical smoke sensor 104-3. IR lights coming from IR LED refracts and scatters onto the photodiode. When scattered IR light beams reach photodiode, optical smoke sensor 104-3 transmit the set of signals.
[0038] In an embodiment, the housing 102 can include an electrochemical oxygen sensor (i.e. MIX8410) 104-4 that can be configured to detect concentration of oxygen in the air of the pre-defined area. To get the concentration of oxygen, under the catalysis of the electrode, a redox reaction occurs on the working electrode and the counter electrode, thereby generating a current, the generated current is measured to get the concentration of oxygen.
[0039] In an embodiment, the wireless communication circuitry 108 may be connected to a network through wireless communication or wired communication, and communicate with the mobile computing devices. The wireless communication and/or network may include a cellular communication that uses at least one of long term evolution (LTE), LTE-advanced (LTE-A), code division multiple access (CDMA), wideband CDMA (WCDMA), universal mobile telecommunications system (UMTS), wireless broadband (WiBro), global system for mobile communications (GSM), etc. According to an exemplary embodiment, the wireless communication may include at least one of wireless fidelity (WiFi), light fidelity (LiFi), Bluetooth (BT), Bluetooth low energy (BLE), Zigbee, near field communication (NFC), magnetic secure transmission (MST), radio frequency (RF), or body area network (BAN). According to an example embodiment, the wireless communication may include GNSS. The GNSS may, for example, be a global positioning system (GPS), a global navigation satellite system (Glonass), Beidou navigation satellite system (Beidou), or the European global satellite-based navigation system (Galileo). The wired communication may, for example, include at least one of a universal serial bus (USB), a high definition multimedia interface (HDMI), a recommended standard-232 (RS-232), power line communication (PLC), a plain old telephone service (POTS) or the like. The network may include a telecommunications network, for example, at least one of a computer network (e.g., local area network (LAN) or wide area network (WAN)), the Internet, or a telephone network.
[0040] In an embodiment, one or more push-buttons 114 are provided on the housing 102, and upon actuation of at least one of the one or more push-buttons 114, the sensors 104 can be activated to detect one or more fire characteristics in the pre-defined area. Upon actuation of the at least one of the one or more push-buttons 114 again, the alert unit 112 can be deactivated.
[0041] In an embodiment, the processing unit 110 can be operatively coupled to the sensors 104, the display unit 106, the alert unit 112, and the processing unit 110. The processing unit 110 can include one or more processor(s). The one or more processor(s) can be implemented as one or more microprocessors, microcomputers, microcontrollers, digital signal processors, central processing units, logic circuitries, and/or any devices that manipulate data based on operational instructions. Among other capabilities, the one or more processor(s) can be configured to fetch and execute computer-readable instructions stored in a memory of the processing unit. The memory can store one or more computer-readable instructions or routines, which may be fetched and executed to create or share the data units over a network service.
[0042] The processing unit 110 can also include an interface(s). The interface(s) can include a variety of interfaces, for example, interfaces for data input and output devices, referred to as I/O devices, storage devices, transducers, actuators, and the like. The interface(s) can facilitate communication of the processing unit with various components coupled to the processing unit. The interface(s) can also provide a communication pathway for one or more components of the processing unit. Examples of such components include, but are not limited to, processing engine(s) and database. A database can include data that is either stored or generated as a result of functionalities implemented by any of the components of the processors(s).
[0043] In an embodiment, the memory store instructions that, when executed, cause the processor to receive the set of signals from the one or more sensors 104 i.e. the photoelectric sensor 104-1, MQ2 Gas sensor 104-2, optical smoke sensor 104-3, and the electrochemical oxygen sensor 104-4. The processing unit 110 can be further configured to extract level of each of the one or more fire characteristics from the received set of signals. The one or more fire characteristics comprise comprises any or a combination of temperature, smoke, flame height, fire intensity, frequency, flame angle, and flame depth.
[0044] The extracted values can be compared with a set of pre-defined range of each of the fire characteristics. Upon detection of value of at least one of the one or more fire characteristics beyond the associated pre-defined range, the processing unit 110 can generate a first warning signal and a second warning signal. The first warning signal can be transmitted to the alert unit 112 and the second warning signal can be transmitted to an associated mobile computing device, and the first warning signal and the second warning signal can be visual, tactical, vibratory, and auditor.
[0045] Upon receiving the first warning signal, the alert unit can be activated and produce a sound accordingly to notify the wearier regarding the fire in the premises or the pre-defined area. Moreover, the alert unit 112 can include but not limited to LED, buzzer, and/or combination thereof. In a way of example and not as a limitation the buzzer can produce sound, and the wearer can leave the premises or can take precautions accordingly to save life of many people.
[0046] In an embodiment, the second warning signal can be transmitted using the wireless communication circuitry 108 to the mobile computing device(s) associated with one or more users such as owner of the company, police station, fire station, and the likes. The mobile computing device can include but not limited to smartphone, phone, laptop, computer, and PDA. For example, the message can be transmitted to the user’s smartphone using internet, and in case internet facility is not available in the premises, the message can be transmitted through the GSM.
[0047] In an exemplary embodiment, the mobile computing device can include applications (also referred as app, hereinafter), or web interface which may be downloadable from an app store and installable such as Andriod, iOS, Window Phone BlackBerry etc. The app can include a user interface and protocols to communicate. The user can control various setting of the wearable device 100 from the smartphone.
[0048] In an embodiment, a power source 116 can be provided to supply power to the sensors 102, the processing unit 110, the alert unit 112, and the display unit 106. Further, the power source can include any or a combination of rechargeable battery, lithium (Li) ion cell, rechargeable cells, electrochemical cells, storage battery, and secondary cell.
[0049] FIG. 2 illustrates an exemplary flowchart in order to explain its working, in accordance with an exemplary embodiment of the present disclosure.
[0050] The wearable device 100 can be initiated by turning ON the wearable device 100 (as shown in step 202). Upon pressing at least one of the one or more push-buttons 114 in step 204, when the determination is Yes, one or more sensors 104 can be activated (as shown in step 206) to collected one or more fire characteristics in the pre-defined area of the premises. When the determination is No in step 204, the wearable device 100 can be turned ON again (i.e. step in 202 is repeated).
[0051] Upon activation of the one or more sensors 104, check threshold of each of the one or more fire characteristics (as shown in step 208), if at least one of the one or more fire characteristics found beyond the pre-defined range, activate an alert unit 112 to produce sound to notify the user (as shown in step 210). In addition, in step 212, a message can be transmitted to mobile computing devices associated with one or more users such as fire station, police station, and the like. When the determination is No is step 208, the step 206 can be repeated after a pre-defined time.
[0052] While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.

ADVANTAGES OF THE PRESENT INVENTION
[0053] The present invention provides a wearable device for detecting fire.
[0054] The present invention provides a wearable device to prevent a lot of accidents which are caused by fire and liquefied petroleum gas leakage.
[0055] The present invention provides a wearable device to reduce the casualty in the premises from gas leakage.
[0056] The present invention provides a wearable device to notify owner of the premises, and notify fire station also.

We Claims:

1. A wearable device, comprising;
a housing 102;
one or more sensors 104 located inside the housing and configured to detect one or more fire characteristics in a pre-defined area, and correspondingly generate a set of signals;
a display unit 106 located on front side of the housing to display information;
a wireless communication circuitry 108 located inside the housing, and configured to wirelessly connect the wearable device with a mobile computing device; and
a processing unit 110 operatively coupled to the one or more sensors 104 and the display unit 106, the processing unit 110 comprising a processor coupled with a memory, the memory store instructions that, when executed, cause the processor to:
receive the set of signals from the one or more sensors 104;
extract level of each of the one or more fire characteristics;
generate a first warning signal and a second warning signal, upon detection of value of at least one of the one or more fire characteristics beyond an associated pre-defined range, wherein the first warning signal is transmitted to an alert unit 112 configured to the wearable device 100, and the second warning signal is transmitted to the associated mobile computing device; and
generate, by the alert unit, a sound based on the received first warning signal.
2. The wearable device as claimed in claim 1, wherein upon receiving the second warning signal, the associated mobile computing device produce the sound through a speaker of the mobile computing device and display a message on a screen of the mobile computing device
3. The wearable device as claimed in claim 1, wherein the one or more sensors 104 comprises a photoelectric sensor 104-1 configured to detect smouldering fire in the pre-defined area.
4. The wearable device as claimed in claim 1, wherein the one or more sensors 104 comprises a MQ2 Gas sensor 104-2 configured to detect concentration of one or more gases in air of the pre-defined area.
5. The wearable device as claimed in claim 1, wherein the one or more sensors 104 comprises an optical smoke sensor 104-3 configured to detect smoke particles in the pre-defined area.
6. The wearable device as claimed in claim 1, wherein the one or more sensors 104 comprises an electrochemical oxygen sensor 104-4 configured to detect concentration of oxygen in the air of the pre-defined area.
7. The wearable device as claimed in claim 1, wherein the one or more fire characteristics comprises any or a combination of temperature, smoke, flame height, fire intensity, frequency, flame angle, and flame depth.
8. The wearable device as claimed in claim 1, wherein the wireless communication circuitry is selected from a group consisting of Wireless Fidelity (Wi-Fi), Bluetooth, Li-Fi, Wireless Local Area Network (WLAN), ZigBee, and GSM module.
9. The wearable device as claimed in claim 1, wherein one or more push-buttons 114 are provided on the housing 102, and upon actuation of at least one of the one or more push-buttons 114, the one or more sensors 104 get activated to detect one or more fire characteristics in the pre-defined area.
10. The wearable device as claimed in claim 9, wherein upon actuation of the at least one of the one or more push-buttons 114, the alert unit 112 is deactivated.