A WEARABLE DEVICE FOR REAL-TIME MONITORING OF CHILDREN'S SAFETY AND HEALTH

Abstract

ABSTRACT A WEARABLE DEVICE FOR REAL-TIME MONITORING OF CHILDREN'S SAFETY AND HEALTH A wearable device featuring an integrated system that combines activity and vital signs monitoring sensors, cellular connectivity through a SIM card, a Wi-Fi-enabled communication module, a geo-fencing alert mechanism, and an emergency response notification system is essential for the safety and oversight of children in diverse settings. The hardware and software architecture of this invention facilitates real-time tracking, communication, and emergency alerts. FIG.1

Specification

Description:FIELD OF THE INVENTION
The present invention pertains to a child monitoring system designed for parental use.

BACKGROUND OF THE INVENTION
The current trends and demands are prompting parents to provide their children with opportunities for outdoor activities that require minimal supervision, such as sports, biking, and playing in parks. Advanced monitoring systems are being developed through technological innovations, including Machine Learning (ML), artificial intelligence (AI), and the Internet of Things (IoT), which enhance the ability to protect children during these independent activities. Additionally, the rapidly evolving social landscape and workplace demands significantly impact family dynamics, as parents struggle to balance time with their children amidst busy schedules aimed at achieving financial stability. This situation has led to the development of innovative strategies to ensure children's safety and well-being.
To ensure the child safety the contextual really highlights are proposed for contemporary parenting, completely the converge with professional obligations and parental responsibilities, which demands for creative solutions when they are not in the home or any safe place.

OBJECTS OF THE INVENTION
The objective of the current invention is to provide a device specifically intended for the monitoring of children.
Another objective of the present invention is to provide a child monitoring device featuring an enhanced option, which includes a camera and an Emergency Response Notification System, all available at a more affordable cost.
SUMMARY OF THE INVENTION
The present resent invention discloses a child tracking wearable device is engineered to enhance the safety and monitoring of children through advanced technology. It includes a suite of real-time tracking sensors, such as accelerometers, gyroscopes, pulse oximeters, and a vibrating sensor, all integrated with a microprocessor, camera module, and GPS chip. The microprocessor, which may be an Arduino, ESP32, or Raspberry Pi, facilitates communication with external devices via an SPI interface. This innovative device operates over a cellular mobile network, ensuring reliable wireless communication and geo-fencing capabilities to alert guardians if a child ventures outside predetermined boundaries. It is powered by a rechargeable battery, with location data transmitted through the GPS chip to connected remote devices, enhancing situational awareness for caregivers.

The child monitoring system herein described comprises a child unit featuring a wearable tracking device, and a parental unit equipped with a microprocessor, a wireless transceiver, a display, a microphone, and a speaker. These components enable seamless wireless communication between the units, allowing the child unit to transmit location data, determined by an integrated GPS chip, to the parental unit, which displays this information prominently on its screen. Additionally, the parental unit is outfitted with an alarm system to notify the guardian upon receiving signals from the child unit. The display serves to depict a map, illustrating the child's location based on GPS coordinates. Furthermore, the child unit includes sensors such as accelerometers, gyroscopes, and pulse oximeters to monitor the child's movement, orientation, and vital signs, respectively.

BRIEF DESCRIPTION OF THE FIGURES
FIG. 1 illustrates a block diagram representing the end-to-end architecture of the child safety locket system described in the present invention.

FIG. 2 illustrates the framework of the tracking system methodology related to the present invention.

FIG. 3 depicts the structure of the tracking system methodology associated with the present invention.

DETAILED DESCRIPTION OF THE INVENTION
The advent of technology has heralded a new era in child safety and monitoring, notably through the development of advanced wearable devices designed for child tracking.
The innovative device of the present invention integrates a multitude of features to ensure the safety and well-being of children in an increasingly dynamic environment. The device comprises several essential components, including real-time activity and vital signs tracking sensors, a microprocessor, a camera module, and a GPS chip, all of which are housed within a compact form factor suitable for young users.

At the core of this device is a microprocessor equipped with an Serial Peripheral Interface (SPI), facilitating seamless communication with external devices. This aspect of the design enables the wearable to interact effectively with various components and mobile networks, allowing for real-time updates and notifications. The inclusion of a camera module enhances the functionality of the device, providing visual data that can be pivotal during emergencies or for monitoring purposes.

The device of the present invention's tracking functionalities is primarily driven by its built-in sensors, which include accelerometers, gyroscopes, and pulse oximeters. The accelerometers and gyroscopes work in tandem to monitor the child's movement and orientation, ensuring that caregivers can keep track of their physical activity and general well-being. Meanwhile, pulse oximeters measure critical health metrics, such as oxygen levels and heart rates, providing parents with essential information about their child's vital signs. Additionally, a vibrating sensor alerts the child to notifications from an external device, fostering a more interactive monitoring experience.

The present invention includes a geo-fence boundary alert feature and an emergency response notification system. These features are crucial in enhancing the safety of the child by providing alerts if they stray beyond predetermined boundaries, allowing for timely interventions by parents or guardians. Communication with remote devices is facilitated through a cellular network, ensuring that location information and vital signs are transmitted continuously, whether via cellular network or a Wi-Fi module.

power source for the wearable device pf the present invention is a rechargeable battery, selected for its reliability and sustainability, ensuring the device remains functional throughout extended periods of use. The microprocessor is often based on popular platforms such as Arduino, ESP32, or Raspberry Pi, known for their versatility and ease of integration.

The child tracking wearable device described herein signifies a notable progression in monitoring technology. It integrates real-time tracking functionalities with vital signs assessment and emergency communication capabilities, this device provides parents with peace of mind regarding their child's safety.
As technological innovations continue to evolve, such devices will play an increasingly critical role in safeguarding children's well-being in an ever-changing world.
The wearable device according to the present invention can indeed take various forms, including rings, lockets, chains and bracelets.

Referring to FIG.1, a child safety system of the present invention provides a complete wearable device to monitor and track child under all circumstances. This wearable device is embedded with three main modules, which are communication module, internet connectivity module and notification module. The innovative wearable device can be more accuracy by its griping design material. The modules contain sensors and sensor data are analysed for the child movements, location, any unwanted danger obstacles or disturbances using Artificial intelligence (AI) based heart sensation. This real time data from the wearable device sensors is analysed by Artificial intelligence (AI)algorithm for understanding different set of routines around, which leads to provide notification based on it for dangerous risky scenario. In case of any anomalous circumstances, the notification given to parents and alter is given in wearable device through vibrating sensor. The System notices the unwanted alert and sends dedicated notification through dedicated mobile notification, similarly the alert to child in wearable device. Hence, the notification is rapid the parents can suddenly take necessary act for child's safety.
DESIGN OF SYSTEM HARDWARE:
The wearable device comprises of sophisticated components all safety and security of child safety, through complete monitor. The wearable device gadget is provided with cameras for sensors for tracking drive, painterly monitoring, and vital signs. These elements are combination if Artificial intelligence (AI) and interment with a SIM card. This can also define the environment or situations to parents, whenever required by three dependable operation and battery life. Also, network created under parent child relationship. The wearable device for cellular connectivity, or a Wi-Fi module for wireless communication.
The wearable device features a lightweight design, promoting comfort during prolonged use without leading to any discomfort. This also ensures the battery life of the device for complete monitor and power consumption rate. Children must be able to wear these sensors all day long without discomfort, and they must be lightweight and small. In order to guarantee continuous monitoring and prolong battery life, they must also have low power consumption.

1.1 Activity and Vital Signs Tracking Sensors
The major activities are tracked by integrating sensitive and accurate sensor device and components. Also, the child's all physical activities and health metrics are tracked in real-time by integrating dynamic software and hardware devices integration. The health tracking of child is tracked using heart rate and pulse oximeters to track the major sign such as oxygen and heart ratings. The sensor devices in wearable device includes accelerometers and gyroscopes to detect drive and orientation of child in respective far location.

1.2 Cellular Network Enabled by SIM Card
The network and mobile functionalities are enabled with SIM card is required to enable the cellular network of the wearable device. This part makes sure that, no matter where the child is, the device can connect to other systems and transmit information to parents or guardians via cellular networks. The device's hardware incorporates a SIM card slot that is linked to a cellular modem. To guarantee dependable connectivity, this modem needs to support multiple network standards, such as 4G LTE. Because power efficiency is so important, the design includes power-saving modes that turn on when the gadget is not in use. Strong encryption techniques are also used to safeguard information sent over cellular networks, guaranteeing the child's privacy and security, providing efficient connectivity.

1.3 Wi-Fi Enabled Wireless Communication Module
In alternative to cell connection, there is an alternative Wi-Fi module for remote connectivity and monitoring, the real-time data of sensors are monitored and enhanced with separate This invention is mainly intended for the better use of the Wi-Fi enabled wireless communication module is to offer a different kind of connectivity for remote monitoring and data transmission. The capability of connecting to nearby wireless networks are assigned allotted with software switching. This design optimizes connectivity, and it generally lowers data costs by guaranteeing level of switching between cellular connectivity. The complete features such as encryption of wireless progression to prevent unwanted access. This is because of the efficient design of power. This module only turns on when unconditional requirement with extended battery life.
1.4 Geo-Fence Boundary Alert Mechanism
The virtual boundary of the child is planned for exact alert scenario based on the location and severity using the wearable locket gadget with geo-fence boundary. This is considered as vital component of the child safety wearable gadget for alerting and notification both child and parent respectively. The virtual boundaries are assumed based on the requirement of parent and child, here in proposed method, for instance boundary is 100 meters of distance from child. This system creates secured alert zones using Wi-Fi and GPS, which is for safety boundary in identifying child's unwanted coverage area. This provides enhanced position accuracy with the amended hardware design, incorporated with combination of a GPS module along with Wi-Fi module integration. In application of parent, an immediate alert is engendered in seconds for the child's designated boundaries. Hence, the module provides enhanced and highly accurate and dependable location-tracking module for quick and secure communication channel.
1.5 Emergency Response Notification System
The purpose of the emergency response notification system is to promptly notify parents or guardians in the event of an emergency. Integrated into the wearable device, this system makes use of all available sensors and communication modules to identify warning indications of danger or distress. The child can manually sound an alert by pressing the emergency button on the hardware. Furthermore, it makes use of the geo-fence mechanism and data from activity and vital signs sensors to automatically identify emergencies such as falls, anomalous heart rate patterns, or boundary breaches. The system then sends quick notifications to the parent's mobile application via the cellular network and Wi-Fi module, giving them access to real-time location and status updates for their child.

1.6 Camera Module:
CAMRAS is designed for the wearable technology of the present invention and includes a Serial Peripheral Interface (SPI), facilitating seamless integration with platforms such as Arduino, ESP32, and Raspberry Pi. A notable benefit of this module is its integrated JPEG compression, which greatly decreases data size, enhancing its suitability for small, resource-limited devices. This compression, along with the effective SPI interface, promotes quicker data transfer while reducing the load on the microcontroller. Furthermore, the module's compact dimensions and low power consumption render it perfect for wearable applications, where efficiency and a small footprint are crucial.
The wearable device outlined in this invention can assume various forms, including rings, lockets, chains, and bracelets.
The key components the present invention is listed in the below table
Table-1: Hardware Component specification wearable tracking device of the present invention.

Specification Wearable device of the present invention Description
Processor ARM Cortex-M4 (STM32F405) A high-performance microcontroller offering up to 168 MHz clock speed, ideal for low-power IoT applications.
GPS Module U-blox NEO-M8N GPS/GLONASS module providing accurate location tracking with an accuracy of ±3 meters.
Connectivity 4G LTE (Quectel EC25), Wi-Fi 802.11 b/g/n, Bluetooth 5.0 (Nordic nRF52840) Ensures reliable connectivity options for data transmission and device management.
Battery 500 mAh Li-ion (Panasonic NCR18500) High-capacity battery offering extended operational time between charges.
Battery Life Up to 48 hours Extended battery life ensuring the device operates continuously for two days under typical use.
Charging Time Approximately 2 hours Quick charging capability, allowing full recharge in about 2 hours using the included charger.
Display 1.2" OLED, 240x240 pixels (SSD1306 driver) High-resolution, energy-efficient display providing clear visuals for user interaction.
Sensors Accelerometer (Bosch BMA400), Gyroscope (Bosch BMG250), Heart Rate (Maxim MAX30102) Comprehensive sensor suite for activity tracking and health monitoring.
Charging Port Magnetic Charging Port (Custom Design) Easy-to-use and secure magnetic charging port for hassle-free recharging.
Water Resistance IP67 (up to 1 meter for 30 minutes) Ensures the device is protected against water immersion, suitable for everyday activities.
Memory 512KB Flash, 64KB RAM Sufficient memory to support application processing and data storage.
Dimensions 45mm x 35mm x 12mm Compact dimensions ensuring a comfortable fit for children.
Weight 35 grams Lightweight design making it comfortable for children to wear throughout the day.
Geo-Fencing Customizable zones, real-time alerts Parents can set safe zones and receive instant notifications if the child leaves these zones.

 
In a specific embodiment of the present invention, a wearable locket is designed incorporating the hardware outlined below.
wearable locket:
The present invention pertains to the assembly and integration of devices, primarily sensors, utilized for all significant characteristics. The physical and vital activities of child are tracked continuously for instantons real-time, mainly for monitoring of child's physical activity and health metrics. This protocol integration for the tracking system, the heart rate and pulse oximetry levels are real-time data with caressing signal processing algorithms for interpret accelerometer and gyroscope readings. The sensors in the proposed system are controlled by the software firmware for the precise data collection and processing. The dependable communication is enabled by the cellular and Wi-Fi network for the location positioning by the SIM card. This invention of software firmware manages the entire network modules using the protocols and authorized continuous emergency alerts when required.
Table 2. Hardware Component specification of locket
Specification Locket-Guardian-Grip (LGG) device (Proposed Method) Description
Processor ARM Cortex-M4 (STM32F405) A high-performance microcontroller offering up to 168 MHz clock speed, ideal for low-power IoT applications.
GPS Module U-blox NEO-M8N GPS/GLONASS module providing accurate location tracking with an accuracy of ±3 meters.
Connectivity 4G LTE (Quectel EC25), Wi-Fi 802.11 b/g/n, Bluetooth 5.0 (Nordic nRF52840) Ensures reliable connectivity options for data transmission and device management.
Battery 500 mAh Li-ion (Panasonic NCR18500) High-capacity battery offering extended operational time between charges.
Battery Life Up to 48 hours Extended battery life ensuring the device operates continuously for two days under typical use.
Charging Time Approximately 2 hours Quick charging capability, allowing full recharge in about 2 hours using the included charger.
Display 1.2" OLED, 240x240 pixels (SSD1306 driver) High-resolution, energy-efficient display providing clear visuals for user interaction.
Sensors Accelerometer (Bosch BMA400), Gyroscope (Bosch BMG250), Heart Rate (Maxim MAX30102) Comprehensive sensor suite for activity tracking and health monitoring.
Charging Port Magnetic Charging Port (Custom Design) Easy-to-use and secure magnetic charging port for hassle-free recharging.
Water Resistance IP67 (up to 1 meter for 30 minutes) Ensures the device is protected against water immersion, suitable for everyday activities.
Memory 512KB Flash, 64KB RAM Sufficient memory to support application processing and data storage.
Dimensions 45mm x 35mm x 12mm Compact dimensions ensuring a comfortable fit for children.
Weight 35 grams Lightweight design making it comfortable for children to wear throughout the day.
Geo-Fencing Customizable zones, real-time alerts Parents can set safe zones and receive instant notifications if the child leaves these zones.

Table-3: Major Components Specification of locket
COMPONENTS SPECIFICATIONS for each module
Accelerometer
Microelectronics LIS3DH Brand STMicroelectronics
Model Number LIS3DH
Range and Measurements Measurement Range: ±2g/±4g/±8g/±16g selectable
Output Data Rate (ODR): From 1 Hz to 5.3 kHz
Resolution: 16-bit digital output
Interface: I2C/SPI digital output interface
Supply Voltage: 1.71V to 3.6V
Low Power Consumption: down to 2 μA in low-power mode
Embedded FIFO: up to 32-level
Gyroscope
LSM6DSO Interface I2C/SPI digital output interface
Supply Voltage: 1.71V to 3.6V
Embedded FIFO: up to 9,760 bytes
Range and Measurements Measurement Range: ±125 dps / ±250 dps / ±500 dps / ±1000 dps / ±2000 dps selectable
Output Data Rate (ODR): From 12.5 Hz to 6.66 kHz
Resolution: 16-bit digital output
Low Power Consumption: down to 1.25 mA in low-power mode
SIMCom SIM7600 Type G LTE Cat-4 Module
Network Support LTE FDD: B1/B2/B3/B4/B5/B7/B8/B12/B13/B18/B19/B20/B25/B26/B28/B66
LTE TDD: B38/B39/B40/B41
WCDMA: B1/B2/B4/B5/B6/B8/B19
GSM/GPRS/EDGE: 850/900/1800/1900 MHz
Data Transfer Rate LTE:
Downlink up to 150 Mbps
Uplink up to 50 Mbps
HSPA+:
Downlink up to 42 Mbps
Uplink up to 5.76 Mbps
Range and Measurements - SIM Interface: 1.8V/3V
Control Interface: UART, USB 2.0
Power Supply: 3.4V to 4.2V
Operating Temperature: -40°C to +85°C
Dimensions: 30 mm x 30 mm x 2.9 mm

Camera Module of The Wearable Locket
The Arducam Mini 2MP Plus is a compact, 2-megapixel camera module with a resolution of 1600x1200, well-suited for wearable applications. It features an SPI interface, which allows it to be easily integrated with platforms like Arduino, ESP32, and Raspberry Pi. A key advantage of this module is its built-in JPEG compression, significantly reducing data size and making it more feasible for small, resource-constrained devices. This compression, combined with the efficient SPI interface, enables faster data transfer while minimizing strain on the microcontroller. Additionally, the module's small size and low power requirements make it ideal for wearable applications, where efficiency and compact design are essential.

Integrated Child Safety Tracking System
Referring to FIG.2, The invention mainly focuses on developing a wearable locket that integrates tracking sensors for child activity and signs with cellular network enabled protocols for communication and boundary of geo fence alert mechanism and response emergency alert. The prototype intentions to together unite the components of modules for child 'activity monitor, health metrics and alert system. This includes the complete assembling and testing of the hardware components, mainly by applying software frameworks for communication and data processing. This ensures the robustness emergency alert. and communication.
Additionally, the wearable locket is equipped with a vibration motor, providing discreet alerts without drawing attention. This feature is particularly valuable for users who require silent notifications while maintaining a polished appearance. The display screen, designed with durability and clarity in mind, features a responsive touch interface that allows for effortless navigation.
Furthermore, the locket's battery life is optimized for extended usage, ensuring that users remain connected throughout their daily activities without frequent recharging. The incorporation of advanced materials not only enhances durability but also contributes to the locket's lightweight design, ensuring comfort during prolonged wear.
the embodiment of a wearable locket, as presented in the present invention, exemplifies the convergence of fashion and technology. With its thoughtfully curated hardware specifications, this innovative accessory stand poised to redefine personal adornment in the realm of wearable devices, offering users a compelling blend of utility and elegance.

2. Tracking Framework and System for Activity and Vital Signs:
The child monitoring system herein described comprises a child unit featuring a wearable tracking device, and a parental unit equipped with a microprocessor, a wireless transceiver, a display, a microphone, and a speaker. These components enable seamless wireless communication between the units, allowing the child unit to transmit location data, determined by an integrated GPS chip, to the parental unit, which displays this information prominently on its screen. Additionally, the parental unit is outfitted with an alarm system to notify the guardian upon receiving signals from the child unit. The display serves to depict a map, illustrating the child's location based on GPS coordinates. Furthermore, the child unit includes sensors such as accelerometers, gyroscopes, and pulse oximeters to monitor the child's movement, orientation, and vital signs, respectively.

The real time data is collected by the sensor devices of tracking system for developing framework in software for the respective activity. Algorithms is implemented for accelerometer, gyroscope data readings, routines are integrated for oximeter data and heart rate data. The mechanisms for error handling are calibrated with calibration routines and processing data from sensing devices.

Step 1: Software firmware data from sensor devices such as accelerometer and gyroscope are initialized. This involves configuration of sensor data and measurement range with respective data rates of output, always the sensor outputs raw data is assumed in digital form, classically as 16-bit format.
Step 2: The signal processing technique such as lowpass filtering is applied by firmware noise removal from the sensor data like accelerometer and gyroscope data. Accuracy is achieved by calibrating sensor for drift and bias over time.
Step 3: The sensor data for tracking and health system are read and measured to level up the range.
Step 4: The conditional range of the sensor based on abnormality of patterns. The algorithms designed for proposed method will validate the readings for predefined thresholds, integrity and reliability.
Step 5: The processing algorithms for sensor output data analysis is used to originate evocative system of measurement such as intensity, step count, activity intensity, patterns of child movement, general intensities of activity or abnormalities in intensity during activities.
Step 6: Finally, the processed data is diffused to software layer which is higher-level for external devices through interfaces and protocols for communication module.

2.1 Communication Infrastructure
In software framework, the design of communication infrastructure incorporates to manage both Wi-Fi connectivity and cellular. This design includes the protocols such as HTTP, WPA/WPA2 and TCP/IP encryption for the data management in secured manner. The firmware for this design infrastructure of network module switches data transfer, network registration and SIM management efficiently. The connectivity Wi-Fi module of software firmware is proposed to manage the support for protocols such as IEEE 802.11 and DHCP for dynamic IP assignment scans for available networks and network connections.
In general, the Wi-Fi module of software firmware to manage between nonactivities, which performs errands such as establishing connections, maintaining network stability and scanning for available networks. The IEEE 802.11 in software firmware for standards of wireless communication with DHCP for dynamic IP address assignment within local network of data transmission using. This also incorporates security between the servers and devices. In the intervening time, the Wi-Fi firmware module offers suppleness for environments or areas with Wi-Fi coverage, this offering alternative with connectivity options and complete enhancing of overall communication reliability. In Unruffled, these components of software form a enhanced robust communication infrastructure that ropes the characteristics of operational reliability and data security essential for locket based child safety wearable devices.

2.Geo-Fence and Emergency Response System
The geo-fence boundary vigilant mechanism in software framework the responsive system of emergency is integrated with geolocation algorithms. This emergency response system fit in geolocation algorithms for mainly accuracy and positioning of Wi-Fi triangulation and GPS positioning software for location tracking. The generation process tiggers between the software framework with algorithms. In case of any boundary breach or emergency scenarios, this software framework triggers an attentive process of notification generation. The Algorithms within the software firmware detects exact the boundary violations of positions of child by comparing the current location with the set boundaries in real-time. These notifications are transmitted through communication protocols with utilized cellular networks or Wi-Fi networks. The firmware manages the entire cycle of the detection and transmission system efficiently. Moreover, the proposed software framework comprises of prioritizing the alerts for mechanisms with location specific facilities for the immediate and effective response. Overall, the incorporation of these algorithms with software modules improves the security and refuge of children by enabling active monitoring and speedy reserve response competences.
performance metrics of wearable child safety devices of the present invention is compared to the child safety devices of the prior art
The accuracy of sensors in existing technologies varies between 70% and 96%, with inconsistencies influenced by proximity and environmental conditions. In contrast, the proposed system claims a higher sensor accuracy, ranging from 87% to 97%, attributed to the integration of advanced AI, IoT, and machine learning technologies. This innovation significantly enhances accuracy, thereby increasing the reliability of monitoring a child's vital activity levels.
Table-3: Performance comparison of various classifier
Criteria Existing Wearable devices in prior art Proposed Locket Child Safety System of the present invention
Sensor Accuracy 70-96% 87-97%
Distance Reliability Less reliable beyond 300m Reliable up to 500m
Overall Performance Moderate due to signal limitations High due to advanced
, Claims:We Claim,
1. A wearable device for child tracking, the Device comprises:
a) a plurality of real-time activity and vital signs tracking sensors;
b) a microprocessor, a camera module, and a GPS chip;
c) a mobile network for wireless communication to remote devices; and
d) a power source,
wherein the microprocessor is equipped with a Serial Peripheral Interface (SPI) interface to communicate with external devices.

2. The child tracking wearable device as claimed in claim 1, wherein the tracking sensors consist of accelerometers and gyroscopes to monitor the movement and orientation of a child in a distant location, pulse oximeters to measure vital signs such as oxygen levels and heart rates, and a vibrating sensor to provide alerts to the child from an external device.

3. The child tracking wearable device, as claimed in claim 1, further includes a geo-fence boundary alert mechanism and an emergency response notification system.

4. The child tracking wearable device as claimed in claim 1, wherein the mobile network for wireless communication to remote devices is a cellular network.

5. The child tracking wearable device as claimed in claim 1, wherein said GPS chip unit is adapted to transmit location information as determined by said GPS chip to remote devices via a cellular network or wifi module.

6. The child tracking wearable device as claimed in claim 1, wherein a power source is a rechargeable battery.

7. The child tracking wearable device as claimed in claim 1, where in the microprocessor is Arduino, ESP32, or Raspberry Pi.

8. The child-tracking wearable device as claimed in claim 1, wherein said child tracking devices can be in various forms, including rings, lockets, chains, and bracelets.

9. A child monitoring system, comprising:
a child unit comprises a wearable tracking device of claim 1;
a parental unit comprising a microprocessor, a wireless
transceiver, a display, a microphone, and a speaker,

wherein the said parental unit and said child unit are adapted to wirelessly communicate with one another, wherein the said child unit is adapted to transmit location information as determined by said GPS chip to said parental unit, and wherein said location information is displayed on said display.

10. The child monitoring system as claimed in claim 9, wherein said parental unit further comprises an alarm adapted to alert a user when said child unit sends a signal to said parental unit.

11. The child monitoring system as claimed in claims 9 or 10, wherein said parental unit is a mobile phone adapted to display a map indicating the location of said child unit thereon as determined by the GPS chip of said child unit.

12. The child monitoring system as claimed in claims 9, 10 or 11, wherein the child unit is adapted to transmit location information as determined by said GPS chip, includes accelerometers and gyroscopes to detect the drive and orientation of a child in a respective far location, and pulse oximeters to track the major signs such as oxygen and heart ratings tracking.

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