Description:FIELD OF THE INVENTION

[0001] The present invention relates to a wearable safety device for emergency evacuation that assist users in hazardous environments by offering real-time health monitoring, environmental sensing, and navigational guidance, while also automatically deploy protective respiratory filtration, deliver oxygen in case of respiratory distress, and guide the user towards safe escape routes during emergencies such as fires or gas leaks.

BACKGROUND OF THE INVENTION

[0002] Emergency navigation is needed in critical situations such as building fires, natural disasters, industrial accidents, or dense smoke environments where visibility and orientation are lost. In such scenarios, guiding a person quickly and safely to an exit or safe zone is essential to prevent injury or fatality. Without guidance, individuals may become disoriented, trapped, or panic, especially in unfamiliar or hazardous environments. Difficulties during emergency navigation include low visibility due to smoke or debris, blocked escape routes, lack of real-time information, and communication breakdowns. Additionally, people may suffer from stress or injury, further impairing their ability to make decisions. Proper emergency guidance, such as through visual cues, audio prompts, or wearable systems, greatly increases the chances of survival and ensures faster, more organized evacuation efforts.

[0003] Traditionally, emergency navigation was performed using basic tools such as static exit signs, emergency lights, floor markings, whistles, and verbal instructions. In buildings, glow-in-the-dark signs and evacuation maps were placed near stairwells and hallways to guide people toward exits. Fire wardens or safety personnel were trained to direct occupants using megaphones or by physically leading them out. In outdoor or industrial settings, hand signals, flags, or alarm bells were used to alert and guide individuals to safety zones. While these methods offered basic direction, they had significant drawbacks. They relied heavily on visibility, which is compromised in smoke, darkness, or chaos. Fixed signage cannot adapt to changing hazards or blocked exits. Verbal instructions may be lost in noise or panic, and human guides may not reach everyone in time. These limitations can delay evacuations, increase confusion, and reduce the chances of safe escape, especially in large or complex environments.

[0004] WO2015019360A1 discloses about a wearable, multi-sensory, personal safety and tracking device which predicts danger by sensing changes in voice, pulse, emotions, impact, motion of the wearer and the device state. In emergency situations, the device triggers SOS, alarm, electro shock, pepper spray and starts capturing images and audio recording for the safety of the wearer. For keeping a track of the wearer, the device connects to the internet using GPRS and sends the images clicked, the sound recorded and the GPS and GSM coordinates to the rescue team for gaining help for the wearer if needed. In the present invention, various technologies are integrated into one single wearable device thereby eliminating the need for purchasing and carrying multiple devices like pulse monitor, motion monitor, phone, camera, GPS module, self-defense tools, etc. thus saving money and providing comfort to the user.

[0005] US8294568B2 discloses about an intrinsically safe accurate location information network for personnel and assets in underground mines, including wireless access points and subnetwork controllers, active wireless locator/messenger tags, network controller(s), and enterprise servers running application control software. The wireless access points are installed in mine entries and crosscuts and track the active wireless locator/messenger tags. The active tags may be worn by mine personnel or installed in mining equipment. The network subsystems form relay networks that wirelessly carry telemetry and control data without the need to penetrate the earth. The subsystems determine the location of persons and assets underground and monitor safety-related information, which can be used for disaster avoidance, early warning of impending disaster, and improved rescue effectiveness.

[0006] Conventionally, many devices have been developed that offer basic protection against fire or provide limited respiratory assistance during emergencies. However, these existing devices are incapable of integrating real-time environmental sensing, navigational assistance, and health monitoring into a single wearable unit. Additionally, these existing devices also fail in autonomous filter management, emergency alert transmission, and guided audio feedback during distress.

[0007] In order to overcome the aforementioned drawbacks, there exists a need in the art to develop a device that requires to be capable of providing comprehensive emergency navigation support by integrating real-time environmental sensing, location tracking, and autonomous air filtration into a wearable form. In addition, the developed device also needs to monitor vital health parameters, deliver controlled oxygen in distress situations, and offers real-time visual and audio guidance to ensure user safety and survival during fire or smoke emergencies.

OBJECTS OF THE INVENTION

[0008] The principal object of the present invention is to overcome the disadvantages of the prior art.

[0009] An object of the present invention is to develop a device that is capable of providing a wearable safety means to a user that automatically detects environmental hazards such as smoke, harmful gases, and high temperatures, and accordingly guiding the user toward safe escape routes during emergency navigation.

[0010] Another object of the present invention is to develop a device that is capable of automatically deploying a suitable air filters by detecting air pollutants, thereby ensuring the user receives clean, breathable air during emergencies.

[0011] Another object of the present invention is to develop a device that is capable of monitoring the user’s vital signs and triggering automatic alerts to emergency services in case of critical health conditions.

[0012] Yet another object of the present invention is to develop a device that is capable of providing real-time voice and visual guidance to the user to reduce panic and ensure clear user direction during emergencies.

[0013] The foregoing and other objects, features, and advantages of the present invention will become readily apparent upon further review of the following detailed description of the preferred embodiment as illustrated in the accompanying drawings.

SUMMARY OF THE INVENTION

[0014] The present invention relates to a wearable safety device for emergency evacuation that is capable of detecting environmental hazards such as fire, smoke, and toxic gases, and accordingly provides real-time navigational assistance to guide the user toward safe escape routes. Further, the device is capable of monitoring the user’s vital signs such as heart rate and blood oxygen and accordingly issues automatic emergency alerts.

[0015] According to an embodiment of the present invention, a wearable safety device for emergency evacuation, comprises of a wearable body adapted to be worn by a user over head and neck portion and installed with a visor attached to front portion of the body for providing a transparent view, outermost layer of the body is fabricated with a fire-resistant material to withstand intense temperatures and prevent direct contact with fire, a filter cavity positioned on cheek side of the body and configured to house multiple filters, a gas sensor is installed with the body to detect harmful gases and pollutants in surroundings, a motorized slider provided with cavity to position a single filter in front of user’s mouth for quick deployment based on environmental conditions and the user’s needs to provide clean and breathable air in presence of smoke or airborne toxins, an optical sensor configured with the cavity to detect accumulation of dust, dirt, or particulates on a filter by analyzing surface condition of filter(s), an electrostatic charging unit is configured with the cavity to apply an electrostatic charge to the filter(s) for attracting and loosening particles for easier removal, a suction unit integrated into the cavity to remove dislodged particles from filter surface, a sensing module integrated with the body to measure real-time wind speed and ambient temperature around the user, a GPS (Global Positioning System) module is integrated with the microcontroller to track real-time location coordinates of the user, accordingly the microcontroller provides real-time alerts and visual guidance through a heads-up display (HUD) installed in the body.

[0016] According to another embodiment of the present invention, the device further comprises of a set of biometric sensors configured with the body to monitor vital signs including blood oxygen levels, blood pressure, glucose levels, and heart rate of the user, in the event of critical health anomalies an automatic alert is triggered to emergency services, a thermal flow sensor configured with the body to monitor user’s breathing patterns and detect signs of difficulty in breathing, an electronic nozzle is connected to an oxygen storage vessel provide on the body for delivering a controlled flow of oxygen upon detection of respiratory distress, the body features a dual-layered internal structure, each layer containing an embedded spring suspension sheet for absorbing external impacts, a first suspension sheet comprising a series of tubes connected to a mini air inflator, and a second suspension layer comprises of multiple shock-absorbing air springs to distribute and absorb external forces, a motorized clamping unit is connected to the slider to move and deploy the filters automatically in response to real-time environmental and user-specific conditions, a vibration unit is integrated with the cavity walls to generate oscillations to dislodge dirt and particulate matter from filter surface during the cleaning process, a Peltier unit is provided on inner portion of the body that dynamically adjusts the internal temperature of body based on real-time thermal feedback from user’s body, an integrated audio unit is attached to the body to deliver soothing cues and instructions to user when signs of panic or distress are detected.

[0017] While the invention has been described and shown with particular reference to the preferred embodiment, it will be apparent that variations might be possible that would fall within the scope of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] These and other features, aspects, and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying drawings where:
Figure 1 illustrates an isometric view of a wearable safety device for emergency evacuation; and
Figure 2 illustrates an isometric view of a filter cavity associated with the device.

DETAILED DESCRIPTION OF THE INVENTION

[0019] The following description includes the preferred best mode of one embodiment of the present invention. It will be clear from this description of the invention that the invention is not limited to these illustrated embodiments but that the invention also includes a variety of modifications and embodiments thereto. Therefore, the present description should be seen as illustrative and not limiting. While the invention is susceptible to various modifications and alternative constructions, it should be understood, that there is no intention to limit the invention to the specific form disclosed, but, on the contrary, the invention is to cover all modifications, alternative constructions, and equivalents falling within the spirit and scope of the invention as defined in the claims.

[0020] In any embodiment described herein, the open-ended terms "comprising," "comprises,” and the like (which are synonymous with "including," "having” and "characterized by") may be replaced by the respective partially closed phrases "consisting essentially of," consists essentially of," and the like or the respective closed phrases "consisting of," "consists of, the like.

[0021] As used herein, the singular forms “a,” “an,” and “the” designate both the singular and the plural, unless expressly stated to designate the singular only.

[0022] The present invention relates to a wearable safety device for emergency evacuation that provides a wearable means for providing safety to the user’s head portion during emergency navigations and also deploy a filter in front of user’s mouth and nose portion by detecting harmful gases and pollutants in surroundings. Additionally, the device is capable of monitoring the user’s physiological conditions, and accordingly deliver filtered or supplemental oxygen when required.

[0023] Referring to Figure 1 and 2, an isometric view of a wearable safety device for emergency evacuation and an isometric view of a filter cavity associated with the device are illustrated, respectively, comprising a wearable body 101 installed with a visor 102 attached to front portion of the body 101, a filter cavity 103 positioned on cheek side of the body 101, a motorized slider 104 provided with cavity 103, an electrostatic charging unit 201 is configured with the cavity 103, a suction unit 202 integrated into the cavity 103, a heads-up display (HUD) 105 installed in the body 101.

[0024] Figure 1 and 2 further illustrates an oxygen storage vessel 106 provide on the body 101, the body 101 features a dual-layered internal structure 107, each layer containing an embedded spring suspension sheet 108, a first suspension sheet comprising a series of tubes 109, a second suspension sheet comprises of multiple shock-absorbing air springs 110, a motorized clamping unit 111 is connected to the slider 104, a vibration unit 203 is integrated with the cavity 103 walls, and an integrated audio feedback unit 112 is attached to the body 101.

[0025] The device disclosed herein comprises of a wearable body 101 incorporating various components associated with the device and developed to be worn by a user over head and neck portion. The body 101 is crafted to conform to the natural curvature of the user's head and neck portion, providing a comfortable and stable enclosure. The body 101 serves as the core element of the device and the outermost layer of the body 101 is fabricated with a fire-resistant material, to withstand intense temperatures and prevent direct contact with fire. The body 101 is equipped with a visor 102 attached to the front portion of the body 101 for providing a transparent forward view during use.

[0026] The user is required to wear the body 101 manually to secure the body 101 around the user’s head and neck portion. Upon wearing the body 101 securely, the user is required to activate the device manually by pressing a push button integrated on the body 101 and linked with an inbuilt microcontroller associated with the device. The push button is a type of switch that is internally connected with the device via multiple circuits that upon pressing by the user, the circuits get closed and starts conduction of electricity that tends to activate the device and vice versa.

[0027] A filter cavity 103 is positioned on the cheek side of the body 101, the cavity 103 is configured to house multiple filters arranged in a stacked or carousel-like structure, each filter is made to neutralize different contaminants such as particulates, carbon monoxide, or chemical vapors, wherein upon activation of the device by the user, a gas sensor installed with the body 101, detect harmful gases and pollutants in surroundings. The gas sensor uses electrochemical or metal-oxide sensing technology to identify threats such as smoke, carbon dioxide, or volatile organic compounds.

[0028] The gas sensor includes a sensing material (such as metal oxide semiconductors), electrodes, a heater element, and signal processing circuitry. When target gases like carbon monoxide, methane, or nitrogen dioxide come into contact with the sensing material, a chemical reaction occurs that alters its electrical resistance. The electrodes measure this change, and the signal is amplified and processed by the circuitry.

[0029] The microcontroller interprets the data from the gas sensor to detect the presence of harmful gases and air pollutants in surroundings. Upon successful detection of such hazardous substances, the microcontroller actuates a motorized clamping unit 111 installed on a motorized slider 104 provided within the cavity 103, to grip a single appropriate filter from the cavity 103 and further the slider 104 is actuated to position the filter directly in front of the user’s mouth and nose region.

[0030] The motorized clamping unit 111 consists of a motorized C-shaped claw, a small electric motor, a gear or threaded rod arrangement, and a soft lining material inside the clamp. The microcontroller, sends signals to the motor to actuate the clamping unit 111. When a signal is received, the motor turns, driving the gear or threaded rod arrangement. This arrangement converts the rotational motion of the motor into linear movement, allowing the C-shaped claw to converge and acquire a grip over the filter.

[0031] Upon gripping of the filter, the microcontroller actuates the slider 104 to quickly position the filter in front of the user’s mouth and nose region. The motorized slider 104 used herein consists of a sliding-rail and multiple rolling members which are integrated with a step motor. On actuation, the step motor rotates the rolling members in order to provide rolling motion to the members which results in sliding of the clamping unit 111 along with the filter for quickly positioning the filter in front of the user’s mouth and nose region. The filter selection is dynamically determined based on real-time environmental conditions and the user’s needs, such as the type and concentration of pollutants detected, to provide clean, breathable air in presence of smoke or airborne toxins.

[0032] Post positioning of the filter, an optical sensor configured with the cavity 103 continuously monitors the surface condition of the filter to detect the accumulation of dust, dirt, or particulates. The optical sensor detects the accumulation of dust, dirt, or particulates by analyzing light scattering or interruption caused by particles on the filter. The optical sensor includes a light-emitting diode (LED), a photodetector, and an optical lens arrangement. The LED emits a focused beam of light onto the filter surface, and the photodetector monitors the reflected or scattered light. As dust or particulates accumulate, the intensity or angle of reflected light changes. These variations are detected by the photodetector and converted into electrical signals.

[0033] The microcontroller interprets these signals to detect accumulation of dust, dirt, or particulates on the filter. Upon identifying significant accumulation, the microcontroller actuates an electrostatic charging unit 201 configured with the cavity 103, to apply an electrostatic charge to the filter(s). This charge generates a localized electric field across the filter surface, for attracting and loosening fine particulate matter such as dust, soot, or toxic residues.

[0034] The electrostatic charging unit 201 functions by applying a high-voltage electrostatic charge to filter surfaces to loosen adhered particles for easier removal. The charging unit 201 includes a high-voltage power source, charging electrodes, insulating mounts, and a control module. When activated, the power source delivers a high-voltage, low-current electrical charge to the electrodes, which in turn emit an electrostatic field across the surface of the filter. This field disrupts the electrostatic bonds holding fine particles like dust and debris to the filter material. As a result, these particles are loosened and is able to be more easily removed.

[0035] Upon loosening the particles through the electrostatic charge, the microcontroller actuates a vibration unit 203 integrated with the cavity 103 walls to generate controlled oscillations that aid in dislodging dirt and particulate matter from the filter surface during the cleaning process. The vibration unit 203 comprises a miniature motor with an eccentric rotating mass (ERM), vibration pads, and a control circuit. When actuated, the motor causes the ERM to rotate, for creating vibrations that are transmitted through the cavity 103 walls to the filter surface. These vibrations loosen particles that have adhered to the filter material, after being electrostatically charged.

[0036] After sufficient agitation of the particles, the microcontroller actuates a suction unit 202 positioned within the cavity 103 to create a negative suction pressure to capture and removes the dislodged contaminants from the filter’s surface and dispose the contaminants within a compartment attached with the suction unit 202. The suction unit 202 consist of a suction pump, a hollow conduit, and a suction catheter for extracting the loosened particles.

[0037] The pump generates a negative pressure, creating a vacuum in the unit. The conduit connects the pump to the compartment, where the extracted dislodged particles are collected. The suction catheter is used to reach the desired area for extracting dislodged particles. Upon actuation of the suction unit 202 by the microcontroller, the pump creates a pressure differential, enabling the dislodged particles to travel through the conduit and gets collected into the compartment, to maintain a clean environment within the cavity 103.

[0038] While the device is in use, a sensing module including an anemometer and a thermal camera, integrated with the body 101, continuously measure real-time wind speed and ambient temperature surrounding the user. The anemometer uses ultrasonic sound waves to determine instantaneous wind speed by measuring the quantity of sound wave travel between a pair of transducers that are step up or step down by the effect of wind. The anemometer works on the principle that the travel time of sound waves through the air is affected by the wind speed component parallel with the direction. The anemometer sends the determined speed/direction to the microcontroller in the form of an electrical signal.

[0039] The thermal camera mentioned herein consists of a lens, detector array, and processor. The lens focuses infrared radiation emitted from the surrounding of the user onto the detector array, which is made up of infrared sensors or thermopiles. These sensors convert infrared energy into electrical signals and send the data to the microcontroller.

[0040] The microcontroller processes the data from the sensing module to assess dynamic changes in surrounding atmospheric conditions, to predict potential behavior patterns of fire and smoke movement, including direction of spread, thermal intensity, and rate of propagation. Upon predicting the fire and smoke behavior, the microcontroller in association with a GPS (Global Positioning System) module integrated with the microcontroller, track real-time location coordinates of the user. The GPS (Global Positioning System) module is a satellite-based navigation system. The satellites present in space moving in fixed orbits transmits information about the location of the user. The signals travel at the speed of light and are intercepted by the GPS module such that the GPS module calculates the distance of each satellite and based on the time taken by the information to arrive at the receiver.

[0041] The GPS module locates four or more satellites and calculates the distance between each of them. Using this information, the GPS module evaluate location of the user. Once the location is determined, the GPS module further transmits the exact location of the user to the microcontroller in the form of electrical signal. The microcontroller processes the signal received from the GPS module to determine the real-time location coordinates of the user.

[0042] Based on the real-time location coordinates of the user and the environmental parameters gathered by the sensing module, the microcontroller processes and identifies optimal escape routes and accordingly generates real-time alerts and visual guidance that are projected through a heads-up display (HUD) 105 installed in the body 101, for directing the user toward the safest and most efficient paths for evacuation during emergencies.

[0043] The heads-up display (HUD) 105 used herein consists of a display panel, a micro-projector, and a set of position or gaze-tracking sensors. The display panel is formed from a transparent or semi-transparent material mounted within the user’s direct line of sight, such as on the visor 102 portion of the body 101. The micro-projector is configured to project critical information including escape route directions and environmental alerts, directly onto the display panel. Meanwhile, the sensors detect the orientation of the user's head or eye movement, enabling dynamic adjustment of displayed content for optimal readability and situational awareness. The HUD 105 thereby allows the user to access real-time data without the need to divert attention from the surrounding environment during emergencies.

[0044] Further, a set of biometric sensors configured with the body 101, monitor vital signs including blood oxygen levels, stress levels, temperature, and heart rate of the user, while maintaining continuous contact with the user's skin to ensure accurate and uninterrupted data acquisition. The biometric sensors include but are not limited to a Photoplethysmography (PPG) sensor for tracking blood oxygen saturation and pulse rate of the user, an Electroencephalography (EEG) sensor for monitoring stress levels, fatigue, or unconsciousness, and a temperature sensor to continuously monitor the user's body temperature.

[0045] The Photoplethysmography (PPG) sensor works by using a light source and a photodetector to monitor blood flow through blood volume changes in the skin of the user. The sensor emits light (using an LED) onto the skin, and as blood pulses through the vessels with each heartbeat, the amount of reflected or absorbed light fluctuates. The photodetector captures these changes in light intensity. The PPG sensor then transfer these signals to the linked microcontroller.

[0046] The EEG (Electroencephalography) sensor detect and record electrical activity in the brain. The sensor consists of electrodes, an amplifier, and a signal processor. The electrodes, placed on the scalp, detect voltage fluctuations caused by neuronal activity. These weak electrical signals are amplified and filtered to remove noise before being processed by the signal processor. The microcontroller interprets the data to detect stress levels of the user.

[0047] The temperature sensor used herein detect the temperature by optical analysis of the infrared radiation present in surrounding. On activation, the sensor employs a lens to focus the infrared radiation emitting from the user’s body, onto a detector known as a thermopile. When the infrared radiation falls on the thermopile surface, it gets absorbed and converts into heat. Voltage output is produced in proportion to the incident infrared energy. The detector uses this output to detect the temperature in surrounding. The measured temperature is then converted into electrical signal which is received by the microcontroller.

[0048] The microcontroller processes the signal received from the set of biometric sensors, to monitor vital signs including blood oxygen levels, stress levels, temperature, and heart rate of the user. In the event of critical health anomalies detected through the biometric sensors, the microcontroller sends an automatic emergency alert, that is wirelessly transmitted to designated emergency services by means of a communication module associated with the device. The emergency alert includes the real-time GPS coordinates of the user, for ensuring accurate location tracking and a summarized report of the abnormalities detected, such as dangerously low blood oxygen levels, irregular heart rate, abnormal brainwave patterns, or critical body temperature variations.

[0049] The communication module includes, but not limited to Wi-Fi (Wireless Fidelity) module, Bluetooth module, GSM (Global System for Mobile Communication) module. The communication module allows the microcontroller to send data wirelessly without the need for physical connections. The Wi-Fi module provides connectivity over local networks, enabling real-time communication over longer distances. The Bluetooth module offers short-range, low-power communication, ideal for close proximity. The GSM module allows for communication over mobile networks, facilitating the microcontroller to send wireless alert to emergency services, for minimizing response time during emergencies and ensuring timely assistance in life-threatening situations.

[0050] The microcontroller is further integrated with a blockchain-powered server. This server is configured to receive and securely store critical user-specific data such as real-time location coordinates, biometric health readings, and a summary of abnormalities or hazardous conditions detected by various sensors. The use of blockchain technology ensures that all transmitted data is stored in an immutable, time-stamped, and cryptographically secure ledger. Each data packet generated during an emergency event is treated as a discrete block that is verified and appended to the chain, ensuring tamper-resistance and transparency. This immutable logging mechanism provides verifiable proof of events, which is crucial during post-incident reviews, rescue coordination, and insurance or legal procedures.

[0051] When signs of panic or distress are detected, the microcontroller activates an audio feedback unit 112 attached to the body 101, to deliver real-time soothing auditory cues and emergency instructions to the user. The audio feedback unit 112 plays pre-recorded or dynamically generated calming messages, breathing guidance, or clear navigational instructions to help stabilize the user’s mental state, reduce anxiety, and maintain focus during emergencies. The audio feedback unit 112 used herein is capable of producing clear and natural sound and is capable of adjusting its volume based on ambient noise levels.

[0052] The audio feedback unit 112 consists of audio information, which is in the form of recorded voice, synthesized voice, or other sounds, generated or stored as digital data. The digital audio data is converted into analog electrical signals. Further the analog signal is amplified by an amplifier and the amplified electrical audio signal is then sent to a diaphragm, which is typically made of a lightweight and rigid material like paper, plastic, or metal, and is designed to vibrate or move back and forth when electrical signals are fed to it. This movement creates pressure variations in the surrounding air, generating sound waves in order to generate the audible sound to help stabilize the user’s mental state, reduce anxiety, and maintain focus during emergencies.

[0053] When the microcontroller detects elevated body temperature due to environmental stress or internal exertion, the microcontroller activates a Peltier unit provided on the inner portion of the body 101, to dynamically regulate the internal temperature of the body 101. The Peltier unit is a thermoelectric cooler that uses the Peltier effect to transfer heat from one side of the unit to the other when an electrical current is passed. The Peltier unit consists of two semiconductor materials connected in a sandwich-like fashion. These materials are typically made of bismuth telluride and one side of the Peltier unit is called the hot side and the other is the cold side. When a direct current is applied to the Peltier unit, electrodes within the semiconductor material start moving from one side to the other. The Peltier effect occurs as a result of electron movement.

[0054] When electrons flow from the cold side to the hot side, they carry heat with them. This leads to one side of the Peltier unit becoming colder, and the other side becoming hooter. This effect allows the Peltier unit to effectively transfer heat from one side to the other, creating a temperature gradient in order to generate heating/cooling effect to draw excess heat away from the user and provide continuous thermal comfort and stability to the user, thereby reducing physiological stress and enhancing overall safety and performance during emergency navigation.

[0055] Simultaneously, a thermal flow sensor configured with the body 101, continuously monitor the user’s breathing patterns by detecting changes in temperature between inhaled and exhaled air, to detect signs of difficulty in breathing. The sensor comprises a heated thermistor or micro-heater, ambient temperature sensors, and a control circuit. When the user breathes, the airflow alters the temperature around the heated element. During inhalation, cooler air lowers the element’s temperature, while exhalation brings warmer air, increasing the temperature.

[0056] These temperature fluctuations are detected and converted into electrical signals by the control circuit, which then analyzes the rate, depth, and consistency of the user’s breathing. Upon detecting irregularities such as shallow breathing, slowed respiratory rate, or signs indicative of breathing difficulty, especially in smoke-filled or oxygen-deprived environments, the thermal flow sensor sends data to the microcontroller for immediate analysis.

[0057] The microcontroller processes the received data and if signs of respiratory distress are confirmed, the microcontroller actuates an electronic nozzle connected to an oxygen storage vessel 106 provide on the body 101, for delivering a controlled flow of oxygen to the user. The electronic nozzle used herein consists of a solenoid valve, nozzle tip, and control circuitry. When the microcontroller signals the need to dispense the oxygen, the nozzle activates the solenoid valve, which opens to allow the oxygen to flow from the vessel 106. The oxygen then passes through a series of micro channels within the nozzle tip, which regulate the pressure and direction of the oxygen into the body 101 to ensure that the user receives adequate oxygen support in smoke-filled or oxygen-deprived environments.

[0058] The microcontroller by means of an accelerometer embedded in the body 101, continuously track user’s velocity and movement patterns. The accelerometer is configured to detect linear acceleration made by the user. The accelerometer detects acceleration by measuring changes in capacitance or piezoelectric response due to motion. When the user moves, internal microstructures shift, causing variations in electrical charge or capacitance. These changes are processed by the microcontroller, which calculates acceleration along multiple axes.

[0059] The microcontroller processes the signal received from the accelerometer to determine the user’s speed. If the microcontroller detects that the user is moving unusually fast, suggesting panic, or too slowly, indicating hesitation or disorientation, the microcontroller dynamically adjusts navigational feedback accordingly. For example, in the event of panic-induced rapid movement, the microcontroller slows down pace suggestions and delivers calming audio cues through the integrated audio feedback unit 112. Conversely, if the user is moving too slowly, possibly due to confusion or fear, the device encourages more decisive movement by issuing motivational prompts and emphasizing the urgency of escape.

[0060] Furthermore, the body 101 features a dual-layered internal structure 107 configured to absorb and distribute external impacts that occur during emergency situations. Each of the two layers contains an embedded spring suspension sheet 108. The first suspension sheet comprises a series of flexible tubes 109 that are connected to a mini air inflator. This layer acts as an adaptive cushioning, by inflating to provide support and absorb shock forces. The second suspension sheet includes multiple shock-absorbing air springs 110 that are strategically positioned to evenly distribute external force and reduce localized pressure on the user's head and neck.

[0061] Under normal conditions, the tubes 109 of the first suspension sheet remain partially inflated to provide baseline cushioning. Upon detecting sudden movements, impact, or external shocks, such as during a fall or structural collapse, the microcontroller activates the air inflator. The inflator pumps air into the tube network, causing it to expand rapidly and form a protective buffer around the user’s head and neck.

[0062] The second suspension sheet is integrated as an outer cushioning layer and the shock-absorbing air springs 110 are strategically positioned across critical impact zones such as the crown, rear skull, and cervical areas. Each spring consists of a sealed air chamber with elastomeric walls that compress and expand in response to pressure changes. When an external force is applied, the springs compress and convert the kinetic energy into stored potential energy, which is then dissipated gradually, thus reducing the peak impact load experienced by the user. Additionally, the elasticity of the spring material allows them to return to their original form after deformation, enabling repeated use and ensures continuous protection by mitigating both high-impact and low-frequency vibrations, especially in disaster scenarios.

[0063] Lastly, a battery is installed within the device which is connected to the microcontroller that supplies current to all the electrically powered components that needs an amount of electric power to perform their functions and operation in an efficient manner. The battery utilized here, is generally a dry battery which is made up of Lithium-ion material that gives the device a long-lasting as well as an efficient DC (Direct Current) current which helps every component to function properly in an efficient manner. As the device is battery operated and do not need any electrical voltage for functioning. Hence the presence of battery leads to the portability of the device i.e., user is able to place as well as moves the device from one place to another as per the requirement.

[0064] The present invention works best in the following manner, where the wearable body 101 as disclosed in the invention is adapted to be worn by the user over the head and neck region. The gas sensor detects harmful gases in the surroundings and accordingly the motorized slider 104 deploys the most suitable filter in front of the user’s mouth. The optical sensor detects dust accumulation on the filter surface and accordingly the electrostatic charging unit 201 loosen particles for easier removal. Further, the suction unit 202 dislodge and remove particulates for ensuring optimal filter performance. The sensing module monitors real-time wind speed and ambient temperature to allow the microcontroller to predict fire and smoke movement. Based on this data, along with real-time location coordinates obtained through the GPS module, the microcontroller provides navigational assistance via the heads-up display. Simultaneously, the set of biometric sensors monitor vital health signs. Upon detecting critical anomalies, the microcontroller sends automatic alert to emergency services with location and health summaries. The thermal flow sensor detects irregular breathing patterns and accordingly the electronic nozzle supplies controlled oxygen flow. The Peltier unit dynamically adjusts internal temperature in response to thermal feedback. Additionally, the integrated audio feedback unit 112 delivers calming cues and instructions to the user upon detection of stress or panic, thereby facilitating safe navigation and sustained physiological stability during emergency conditions.

[0065] Although the field of the invention has been described herein with limited reference to specific embodiments, this description is not meant to be construed in a limiting sense. Various modifications of the disclosed embodiments, as well as alternate embodiments of the invention, will become apparent to persons skilled in the art upon reference to the description of the invention. , C , Claims:1) A wearable safety device for emergency evacuation, comprising:

i) a wearable body 101 adapted to be worn by a user over head and neck portion installed with a visor 102, attached to front portion of said body 101, providing a transparent view, wherein outermost layer of said body 101 is fabricated with a fire-resistant material, to withstand intense temperatures and prevent direct contact with fire;
ii) a filter cavity 103 positioned on cheek side of said body 101, configured to house multiple filters, a gas sensor is installed with said body 101 to detect harmful gases and pollutants in surroundings, wherein upon successful detection said microcontroller actuates a motorized slider 104 provided with cavity 103, configured to position a single filter in front of user’s mouth for quick deployment based on environmental conditions and the user’s needs, to provide clean, breathable air in presence of smoke or airborne toxins;
iii) an optical sensor configured with said cavity 103 to detect accumulation of dust, dirt, or particulates on a filter by analyzing surface condition of filter(s), wherein an electrostatic charging unit 201 is configured with said cavity 103 to apply an electrostatic charge to said filter(s), attracting and loosening particles for easier removal, followed by actuation of a suction unit 202 integrated into said cavity 103, activated during cleaning process to remove dislodged particles from filter surface and maintain a clean environment;
iv) a sensing module integrated with said body 101 to measure real-time wind speed, and ambient temperature around said user, in accordance to which said microcontroller predict fire and smoke behavior, wherein a GPS (Global Positioning System) module is integrated with said microcontroller to track real-time location coordinates of said user, and accordingly said microcontroller provides real-time alerts and visual guidance through a heads-up display (HUD) 105 installed in said body 101, directing said user to the safest and most efficient escape routes;
v) a set of biometric sensors configured with said body 101 to monitor vital signs including blood oxygen levels, stress levels, temperature, and heart rate of said user, wherein in the event of critical health anomalies, said microcontroller triggers an automatic alert to emergency services, including user’s current location and a summary of the detected abnormalities; and
vi) a thermal flow sensor configured with said body 101 to monitor user’s breathing patterns and detect signs of difficulty in breathing, wherein an electronic nozzle is connected to an oxygen storage vessel 106 provide on said body 101, said nozzle is positioned within user’s breathing space, capable of delivering a controlled flow of oxygen upon detection of respiratory distress, ensuring user receives adequate oxygen support in smoke-filled or oxygen-deprived environments.

2) The device as claimed in claim 1, wherein said body 101 features a dual-layered internal structure 107, each layer containing an embedded spring suspension sheet for absorbing external impacts, a first suspension sheet comprising a series of tubes 109 connected to a mini air inflator, and a second suspension sheet comprises of multiple shock-absorbing air springs 110, strategically placed to distribute and absorb external forces.

3) The device as claimed in claim 1, wherein a motorized clamping unit 111 is connected to said slider 104, configured to move and deploy the filters automatically in response to real-time environmental and user-specific conditions.

4) The device as claimed in claim 1, wherein a vibration unit 203 is integrated with embedded said cavity 103 walls, designed to generate oscillations to dislodge dirt and particulate matter from filter surface during the cleaning process.

5) The device as claimed in claim 1, wherein said sensing module includes an anemometer and a thermal camera.

6) The device as claimed in claim 1, wherein said set of sensor includes a Photoplethysmography (PPG) sensor, EEG (Electroencephalography) sensor, and a temperature sensor.

7) The device as claimed in claim 1, wherein a Peltier unit is provided on inner portion of said body 101, that dynamically adjusts the internal temperature of body 101 based on real-time thermal feedback from user’s body.

8) The device as claimed in claim 1, wherein said microcontroller is integrated with a blockchain powered server, ensuring secure and immutable transmission and storage of user's current location, summary of detected abnormalities, and user's health data over said server, thereby providing a secure, verifiable record of the emergency event.

9) The device as claimed in claim 1, wherein an integrated audio feedback unit 112 is attached to said body 101 to deliver soothing cues and instructions to user when signs of panic or distress are detected.